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Stellar-X5s
Designed for summits, made for you
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DESIGN OUTDOOR
Sleek and emblematic, the design of the STELLAR-X5s Chamonix-Mont-Blanc Edition pays homage to the summits. Its white back evokes the purity of eternal snow, the Chamonix-Mont-Blanc logo signals an alliance of excellence, and the "Open the Way" engraving on the edge embodies the shared values of freedom, performance and durability.
New
Outdoor mode
Outdoor mode activated
Essential notifications
Reconnect by deactivating your non-essential notifications
Essential notifications
stay focused on the essentials
When you're hiking, mountain biking or doing any sporting activity, notifications can quickly become intrusive. Thanks to the Outdoor Mode of the STELLAR-X5s Chamonix-Mont-Blanc Edition, you can automatically suspend all non-essential notifications (social networks, emails, news...), while remaining available for what really matters: urgent calls and texts or navigation applications.
This feature turns the rugged smartphone into a reliable companion, fully reconnecting you to your outdoor environment instead of distracting you from it.
Extended autonomy
11 customisable settings to save up to 25% more battery life
Extended autonomy
+25% battery for your outings
Autonomy is the number one criterion cited by outdoor sports enthusiasts when asked what is most important in a smartphone. To meet this expectation, the Outdoor Mode of the STELLAR-X5s Chamonix-Mont-Blanc Edition activates an advanced, customisable energy profile, automatically adjusting up to ten parameters such as brightness, standby mode or deactivation of WiFi, Bluetooth and the secondary SIM
Result: up to 25% more autonomy(1), that's several hours more to extend a hike, an outing at sea or simply to save battery power in case of the unexpected.
Onboard outdoor apps
Prepare for your outings with exclusive features on Whymper and Iphigénie
Embedded Outdoor Apps
Chamonix – L’application officielle de la vallée du Mont-Blanc
Développée par la Compagnie du Mont-Blanc et l’Office de Tourisme, l’application Chamonix regroupe toutes les informations pratiques pour profiter pleinement de la vallée. Gratuite et complète, elle s’adresse aussi bien aux habitants qu’aux visiteurs en quête d’efficacité et de liberté.
Fonctionnalités principales :
- Bulletins météo et conditions en montagne actualisées
- Webcams en direct pour visualiser l’état du terrain et des sommets
- Informations sur les remontées mécaniques, horaires et ouverture en temps réel
- Randonnées, trail et itinéraires VTT pour explorer la vallée en toutes saisons
- Horaires de bus et calcul d’itinéraires pour simplifier vos déplacements
- Annuaire, plan de ville et infos transport toujours à portée de main
- Recharge de forfaits de ski en ligne, sans passer par les caisses
Whympr – Préparez vos sorties outdoor partout dans le monde
Née en 2017 au pied du Mont-Blanc, Whympr est l’application de référence pour tous les passionnés d’outdoor. Que vous soyez randonneur, alpiniste, grimpeur ou skieur de randonnée, elle regroupe tout ce dont vous avez besoin pour préparer vos sorties, planifier vos itinéraires et partager vos expériences avec une communauté active.
Fonctionnalités principales :
- Plus de 100 000 itinéraires et points d’intérêt dans le monde entier
- Cartes topographiques (IGN, SwissTopo, Fraternali…), carte 3D et mode hors-réseau
- Météo de montagne avancée, bulletins d’avalanche géolocalisés et accès à 23 000 webcams
- Tracking GPS, création et import/export de traces GPX, statistiques de sortie
- Communauté engagée : partage d’expériences et retours de terrain récents
- Outil Web & Mobile pour préparer vos sorties sur ordinateur et les retrouver sur votre téléphone
Iphigénie – La référence cartographique
Plébiscitée par des millions d’utilisateurs depuis 2010, Iphigénie est l’application cartographique indispensable des randonneurs, forestiers, guides, géologues ou pompiers. Sa force : offrir un accès aux cartes IGN même sans réseau, avec des outils avancés pour préparer et suivre vos itinéraires en toute sérénité.
Fonctionnalités principales :
- Plus de 70 fonds de cartes topographiques et calques : IGN, SwissTopo, Fraternali, cartes satellites, cadastre…
- Mode hors-réseau : téléchargement des cartes pour une utilisation sans connexion
- Gestion des traces et repères : création, import et export au format GPX
- Suivi en temps réel : géolocalisation, distance, vitesse, altitude
- Alertes vocales et fonction Beacon pour être suivi à distance par vos proches
Avantages exclusifs
Pour vous permettre de profiter pleinement de vos activités outdoor, Crosscall, Whympr et Iphigénie ont décidé de vous offrir des avantages exclusifs :
- Accès gratuit aux fonctionnalités premium Whympr : enregistrement de traces et création de traces
- 3 mois offerts au Pack Outdoor, incluant cartes enrichies, mode hors-réseau et outils de préparation avancés
Enhanced security
Automatically share your location with friends and family, even without mobile data
Accurate geolocation
Stay on track
Enhanced security
Enhanced security: always findable, even without mobile data
Just after autonomy, safety is the second most important criterion for outdoor enthusiasts. To meet this need, the Outdoor Mode of the STELLAR-X5s Chamonix-Mont-Blanc Edition includes an automatic text message function with a Google Maps geolocation link. The message can be sent to one or more contacts chosen by the user, at a predefined interval, even without 3G, 4G or 5G(3). Your friends and family will receive your position regularly, so they can track your progress or be alerted if something unexpected happens
Unlike other solutions, this functionality is accessible without creating an account, without downloading an application and can be activated with a single click: simple, effective security for all your outdoor activities.
Stay on the right track
The STELLAR-X5s Chamonix-Mont-Blanc Edition guarantees geolocation accuracy of up to 5 metres, even in demanding environments such as mountains or dense urban areas. This performance is based on its ability to connect simultaneously to the main satellite constellations - GPS, A-GPS, Glonass, Beidou/Compass and Galileo - to multiply reference points and reduce margins of error. The architecture and optimised layout of its antennas also avoid obstruction by hand, ensuring continuous, reliable reception.
For the user, this means smoother navigation, accurate tracking and enhanced safety during outdoor activities such as hiking, trail riding, mountaineering or cycling.
Use with gloves
Glove Touch: use your smartphone without taking off your gloves
Use with gloves
Glove Touch: use your smartphone without taking off your gloves
The STELLAR-X5s Chamonix-Mont-Blanc Edition is equipped with Glove Touch technology, which allows you to use the touch screen even with most protective gloves (PPE). You can pick up a call with gloves up to 2 mm thick and type text comfortably with gloves up to 1.1 mm thick. This performance is complemented by the programmable action buttons, which offer direct access to essential functions without having to go to the screen.
In practice, you no longer need to remove your gloves to consult a map, answer a call or take a photo. A precious asset when it's cold, in the mountains or during activities where gloves are essential - skiing, mountaineering, cycling or professional work. Combined with Wet Touch technology, which guarantees reliable use even in the rain, condensation or frost, the Glove Touch function ensures that your smartphone is always operational, whatever the conditions.
Enduring
54h36 d'autonomie
Endurance for your adventures
High-capacity 4,500 mAh battery, tested to Crosscall Standards for proven reliability
54h36 of Autonomy
Endurance for your adventures
The STELLAR-X5s Chamonix-Mont-Blanc Edition features a high-capacity 4,500 mAh battery, tested to Crosscall Standards for proven reliability. It provides up to 54 h 36 min of autonomy(2), or more than two days of continuous use
Designed to withstand repeated charging cycles, it maintains its performance throughout the seasons. Its intelligent protection features limit premature wear and extend its lifespan, while the 5-year warranty, including battery(7), means you can use your smartphone with complete peace of mind.
And because energy can be shared, the STELLAR-X5s Chamonix-Mont-Blanc Edition can also be used as a powerbank to recharge your other, less enduring devices.
Capture the action
La meilleure qualité d'image sur un smartphone outdoor
Au coeur
de l'action
Au coeur de l'action
X-Link
a technology
endearing
Eco-system compatibility x-link
ATTACH, CHARGE and TRANSFER IN ONE WAY AND ENJOY 98% ENERGY EFFICIENCY WHEN CHARGING
Increased performance
5G/5GSA - WIFI 6/6E Ram 8GB / Memory 256GB Processor Octocore 2,1 Ghz
Increased performance
5G ready for the future
Compatible with 5G NSA (Non Stand Alone) and 5G SA (Stand Alone), the STELLAR-X5s Chamonix-Mont-Blanc Edition offers both the stability of today's networks and the ultra-fast speeds of the future 5G standard.
Faster downloads, smooth streaming and immediate access to your shared files: you benefit from connectivity designed to last over time.
- 5G & 5GSA compatibility
- High and stable speeds
- Optimised connection for streaming and data sharing
The best in Wi-Fi
With its Wi-Fi 6/6E compatibility, the STELLAR-X5s Chamonix-Mont-Blanc Edition takes advantage of the new generations of boxes and fibre optics to offer boosted speeds and a more stable connection. The extended bandwidth of Wi-Fi 6E reduces interference, particularly in dense urban areas, so you can continue to use your phone wherever you are
- Wi-Fi6/6E
- Optimised bandwidth for fibre
- Less interference in congested areas
Long-lasting performance
Its Qualcomm® QCM5430 processor, engraved in 6 nm, combines power and energy efficiency. Optimised for durability, it benefits from the Extended Life programme with performance and security updates until December 2031(5). The result is a fluid, responsive and energy-efficient smartphone, even after years of use
- Qualcomm® 6nm processor
- Extended Life Programme (major until December 2031(5))
- Sustainable performance and low power consumption
Plenty of memory
With its 8 GB of DDR5 RAM, multitasking becomes fluid and responsive. Its 256 GB UFS 3.1 memory means you can save your photos, videos and updates quickly. So you've got plenty of space to store all your content and access it instantly
- 8 GB DDR5 RAM
- 256 GB UFS 3.1 storage
- Instant access to your content
Totally fluid display
The 6.49" Full HD+ IPS screen (1080 x 2400 px) automatically adapts its refresh rate from 60 Hz to 120 Hz to suit your needs. Whether you're browsing the web, reading or consulting documents, you'll enjoy a fluid, legible display in all circumstances, while preserving battery life
AI for clear, powerful sound
Making phone calls remains an essential function, even in noisy environments. The STELLAR-X5s Chamonix-Mont-Blanc Edition incorporates upHear®(6) noise reduction technology, previously reserved for the professional world. Based on artificial intelligence, it captures and analyses ambient sounds in real time to isolate speech and reduce unwanted noise by up to -60 dB
This innovation combines with a user-focused dual speaker system (90 dB main and 85.5 dB hybrid) to deliver clearer communications and an immersive audio experience. Whether you're on a windy path, in the middle of a busy refuge or in a crowded street, your exchanges remain crisp and audible.
- Fraunhofer upHear®(6) (IA) noise reduction
- Noise reduction of up to -60 dB
- Dual stereo speakers
- User-oriented sound for improved clarity
Ergonomics designed for efficiency
Because an outdoor smartphone should be quick and easy to use, the STELLAR-X5s Chamonix-Mont-Blanc Edition is designed to save time in the most demanding situations. Its three physical buttons, two of which are fully programmable, allow you to activate your essential functions with a single gesture: activate the torch, launch a Push-to-Talk call, open the camera or send an emergency message, without having to unlock the screen
The torch, particularly popular with users, offers 5 lighting levels including a Boost mode. It combines high luminosity, a wide beam and a long range, so it can be used for all kinds of purposes: moving around discreetly at night, inspecting an electrical panel or even replacing the lighting on a bicycle.
- 3 physical buttons, 2 of which are programmable
- Direct activation of your essential functions (PTT, torch, photo, SOS, etc.)
- Saves time: no need to unlock the screen
- Powerful torch: 41 lumens, with a 75° wide beam and a range of 11.5m
Fixation renforcée par X-BLOCKER
Resistance to 20kg tearing force
X-BLOCKER
an attachment that won't let go
Combined with the X-BLOCKER mechanical system, the X-LINKTM(3) system provides a reinforced fastener capable of withstanding a pull-out force of up to 20 kg, guaranteeing total reliability even in extreme conditions.
Benefits for the user:
- Reinforced fixing with X-BLOCKER (20 kg pull-out resistance)
- Compatibility with a wide range of accessories: bike mounts, car mounts, action cam-style chest mounts, fixed or mobile charging stations [link to access]
Resists
for all your outings
1,5M
Repeated falls
MIL-STD810H standard
IP68
All liquids
Including salt water
+300
x-Labs tests
IKO5
Scratch resistant
Gorilla Glass Victus 2
-20+60°
Operating temperatures
Résistance et étanchéité
Résistant et étanche : conçu pour durer partout
Le STELLAR-X5s Édition Chamonix-Mont-Blanc incarne le savoir-faire de Crosscall : un smartphone robuste pensé dès sa conception pour résister aux chocs, aux chutes, aux variations de température et à l’immersion prolongée. Conçu pour les environnements outdoor exigeants, il reste fiable et fonctionnel là où beaucoup de téléphones atteignent leurs limites.
Une conception robuste validée par des tests rigoureux
Cadre en aluminium rigide, structure en polycarbonate renforcé de fibres de verre et angles protégés : chaque matériau a été choisi pour encaisser les impacts. Le STELLAR-X5s Édition Chamonix-Mont-Blanc a été testé pour résister à des chutes d’1,5 mètre sur surfaces dures et à 500 chutes répétées d’1 mètre. Son châssis a aussi prouvé sa solidité face à une pression équivalente à 50 kg.
Conforme à la norme militaire MIL-STD-810H, il garantit une robustesse vérifiée selon des protocoles exigeants.
- Résistance aux chutes d’1,5 m
- Cadre aluminium + polycarbonate fibre de verre
- Tests intensifs (500 chutes, 50 kg de pression)
- Certification militaire MIL-STD-810H
Un écran protégé par un verre durable
Sa vitre de protection Corning Gorilla Glass Victus 2 allie fiabilité et résistance. Avec un indice IK05, elle supporte l’impact d’un objet de 250 g lâché à 28 cm de hauteur et encaisse des chocs jusqu’à 1,5 mètre sur surface dure. Positionnée légèrement en retrait, elle limite les risques lors des chutes à plat et concentre sa protection sur les impacts directs.
- Corning Gorilla Glass Victus 2
- Résistance IK05
- Protection renforcée contre les chocs directs et les rayures
Fiable dans toutes vos pratiques outdoor
Pensé pour accompagner vos usages intensifs, le STELLAR-X5s Édition Chamonix-Mont-Blanc reste fonctionnel dans des environnements exigeants. Il continue de fonctionner même exposé à des températures de –20 °C à +60 °C, que ce soit en randonnée en haute montagne, en mer ou lors de missions professionnelles sur le terrain.
- Résistant aux écarts de température (–20 °C à +60 °C)
- Conçu pour les environnements outdoor et professionnels
Wet Touch
Wet screen operation
Wet Lock
Touch lock in the rain or when submerged
Dry Max
Speakers dry out quickly
total waterproofness
total waterproofness and adapted functions
IP68 certified, it is totally dustproof and can be submerged to a depth of 2 m for 30 minutes, including in salt and chlorinated water. To take it one step further, intelligent functions enhance its use in wet environments:
- Wet Lock: locks the touchscreen underwater to prevent accidental activation, while maintaining access to the physical buttons (photo, video, key functions)
- Wet Touch: screen usable even when wet, in the rain, with condensation or frost
- Dry Max: after immersion, the speakers vibrate to expel the water and quickly restore clear sound
Fidèle à vos
convictions
Guaranteed to last
Take advantage of its 5-year warranty, including battery(5), to prolong its use
Eco-designed by nature
Equipped with a 100% recycled aluminium chassis and always highly repairable
Extended OS update and security
Look forward to Android 18 and continued security until Dec 31
Guarantee, eco-design, upgrades
A unique 5-year guarantee, battery included(7)
The STELLAR-X5s Chamonix-Mont-Blanc Edition comes with a 5-year warranty, including the battery(7) - a rare commitment in the world of telephony. Its 4,500 mAh lithium polymer battery, tested to Crosscall Standards, offers up to 54h 36min of autonomy(2) and maintains its performance over time. If necessary, it can be replaced under warranty, extending the life of the smartphone and avoiding early replacement.
This exceptional guarantee demonstrates Crosscall's confidence in the quality and durability of its products, giving you complete peace of mind for your outdoor adventures.
A more responsible design
Because a robust smartphone should also be responsible, the STELLAR-X5s Chamonix-Mont-Blanc Edition is designed using recycled materials: the chassis is made from 100% recycled aluminium and the rear shell from 50% recycled polycarbonate. The corners are made from tough, elastic TPU, capable of absorbing shocks in the event of a fall, whatever the angle of impact. A design conceived to last, while reducing its environmental footprint
Its packaging, made from 100% recycled and plastic-free materials, also reflects this commitment.
Designed to be repaired and repairable, its spare parts will remain available for 10 years(8), guaranteeing a possible second life and limiting the environmental impact.
A secure and up-to-date smartphone until 2031
Delivered with Android(9) 15, the STELLAR-X5s Chamonix-Mont-Blanc Edition will benefit from major updates up to Android(8) 18, as well as 5 years of guaranteed security patches until December 2031(5). Designed to protect your personal and business data, it features enhanced encryption, a biometric sensor and the latest certified cryptographic suites. As a result, you'll enjoy a robust, secure outdoor smartphone that continues to perform, even after several years' use.
stellar-x5s
chamonix-mont-blanc edition
- 6,497" - 20:9" screen
- Rear camera 50 Mpx, 80°
- RAM memory 8 GB, Flash 256 GB
stellar-m6
Chamonix-mont-blanc edition
- Écran de 6,1'' - 19,5:9
- 50 MP rear camera
- RAM memory 6 GB, Flash 128 GB
When mountains inspire technology
Chamonix and Crosscall share much more than an attachment to the outdoors: they share the same vision.
That of a world where nature is at once a playground, a workspace and a source of inspiration. A world where every outing, every climb, every outdoor mission is experienced to the full, with confidence, whatever the conditions.
In Chamonix, a world reference for outdoor sports, professionals, enthusiasts and amateurs meet on the same trails with the same thirst for freedom, commitment and challenge. It's an area of high standards, of challenges, of transmission. It's an area that is as committed to preserving its environment as it is to innovating its practices
Crosscall develops phones designed to last, to resist, to accompany. Reliable, responsible technologies designed for those who live, work and explore outdoors. For rescuers, guides, mountaineers, craftsmen, technicians, for all those for whom the outdoors is an everyday activity, not an exception
This partnership is the coming together of two complementary worlds, united by the same high standards, the same passion, the same ambition: to enable everyone to experience the outdoors to the full, today and tomorrow
Design inspired by the summits
The STELLAR-X5s Chamonix-Mont-Blanc Edition embodies both elegance and robustness. Its white shell pays homage to the eternal snow of the Chamonix summits, while its sober, pure lines convey a timeless aesthetic
At just 11.9 mm thick and 249 g, it combines slimness and strength, a feat for a waterproof, shock-resistant outdoor smartphone. It's built to last, and its textured grip makes it safe and comfortable to hold, so you can use it smoothly and reliably, even on the move
Artificial intelligence at your fingertips
The STELLAR-X5s Chamonix-Mont-Blanc Edition opens the doors to the Android(9) AI ecosystem. Get direct access to Gemini(9), your everyday intelligent assistant, benefit from AI-optimised photo retouching, instantly translate your messages or launch a Google search in a single gesture. An outdoor smartphone that combines robustness and intelligence
A smartphone that replaces several devices
The STELLAR-X5s Chamonix-Mont-Blanc Edition is more than just a robust, waterproof smartphone: it's a real all-in-one tool. By reducing the number of terminals you need to carry, it simplifies your outdoor and professional uses and optimises your investments.
Your office in your pocket with X-SPACE Connected to a screen, keyboard and mouse, the STELLAR-X5s Chamonix-Mont-Blanc Edition transforms itself into a computer thanks to X-SPACE, an interface dedicated to multitasking. With multi-window browsing, compatibility with your business applications and fluid document management, you can enjoy the comfort of a workstation wherever you go
A walkie-talkie with no distance limitWith its Push-To-Talk (PTT)(10) compatibility and customisable physical buttons, the STELLAR-X5s Chamonix-Mont-Blanc Edition becomes a modern walkie-talkie. Group communication is instantaneous, clear and secure, with no range constraints - an asset both when hiking with friends and for professional coordination.
A scanner that's always at hand Its high-definition camera is already capable of scanning documents or QR codes. Combined with the X-SCAN accessory, it turns into a professional scanner(11) ideal for tracking stock, checking equipment or quickly recording data in the field.
Packaging
X-BLOCKER: reinforces the X-LINK magnetic fastener by resisting a 20 kg tearing force, for lasting security of your smartphone even in your most demanding activities.
USB-C / USB-C cable: practical for fast charging and efficient data transfer.
Leash: Adjustable, made from recycled polyester and equipped with an anti-strangle system, this leash combines reliability and practicality. It secures your STELLAR-X5s Chamonix-Mont-Blanc Edition, limits the risk of falling and adapts to all your outdoor activities.
¹ Autonomy test carried out in the environment and test conditions of the CROSSCALL laboratory, on a STELLAR-X5s Chamonix-Mont-Blanc Edition, with and without Outdoor mode activated.
² Autonomy in standard use according to the protocol defined by EU regulation 2023/1669.
³ The service uses the mobile network to send SMS but does not require mobile data (3G/4G/5G Internet) to operate.
⁴ SPS Technology Inc.
⁵ Security patch update for 5 years from the date the product was first marketed. For the STELLAR-X5s Chamonix-Mont-Blanc Edition, updates are guaranteed until December 2031, 3 version upgrades to Android 18, subject to compatibility with future Android versions. Information on OS upgrades and security updates is available on the Crosscall Security page on the Crosscall website under > Support > Security Update.
⁶ Fraunhofer AI-based noise reduction technology upHear available on VoIP Apps and audio and video recordings.
⁷ Your phone is guaranteed under normal conditions of use, and in accordance with our general terms and conditions of sale and the commercial guarantee contract available on the CROSSCALL website under > Assistance > Guarantee. During the warranty period, CROSSCALL will pay for the replacement of the defective battery if the following two cumulative conditions are met: the battery capacity is less than or equal to 70% and the number of full charge cycles is less than or equal to 850. The best practices for battery use recommended by CROSSCALL are available on the CROSSCALL website in the section > About us > News > The Blog
⁸ Pursuant to article L.111-3 of the French Consumer Code, spare parts essential for the use of new products must be available for ten (10) years from the date on which the product is no longer marketed. Your telephone and its accessories in the box are guaranteed against any defect or malfunction that may appear due to their design or manufacture or due to an equipment fault, under normal conditions of use, and in accordance with our general terms and conditions of sale and the applicable commercial guarantee contract available on www.crosscall.com Assistance > Guarantee.
⁹ Google, Android and Gemini are registered trademarks of Google LLC.
¹⁰ Compatible with the main Push-To-Talk (PTT) services on the market.
The local Specific Absorption Rate (SAR) quantifies the user's exposure to electromagnetic waves from the equipment concerned. The maximum authorised SAR is 2 W/kg for the head and trunk and 4 W/kg for the limbs. The use of a listening device to limit exposure of the head to radio emissions from the mobile phone is recommended