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Stellar-X5s
Designed for the summits, made for you
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OUTDOOR DESIGN
Clean and iconic, the design of the STELLAR-X5s Chamonix-Mont-Blanc Edition pays tribute to the peaks. Its white back evokes the purity of eternal snows, the Chamonix-Mont-Blanc logo represents a partnership of excellence, and the engraving “Open the Way” on the edge embodies the shared values of freedom, performance, and durability.
New
Outdoor mode
Outdoor mode activated
Essentialized notifications
Reconnect by disabling your non-essential notifications
Essentialized notifications
stay focused on the essentials
During a hike, mountain biking trip, or sports 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 media, emails, news…), while staying available for what really matters: urgent calls and texts or navigation apps.
This feature turns the rugged smartphone into a reliable companion that fully reconnects you with your outdoor environment instead of distracting you from it.
Extended battery life
11 settings to customize to gain up to 25% more battery
Extended battery life
+25% battery for your outings
Battery life is the number one criterion cited by outdoor sports enthusiasts when asked what matters most in a smartphone. To meet this expectation, the Outdoor Mode of the STELLAR-X5s Chamonix-Mont-Blanc Edition activates an advanced and customizable power profile, automatically adjusting up to about ten settings such as brightness, sleep mode, or disabling WiFi, Bluetooth, and the secondary SIM.
Result: up to 25% more battery life(1), meaning several extra hours to extend a hike, a sea outing, or simply to keep battery power in case of unexpected events.
Built-in outdoor apps
Prepare your outings by enjoying exclusive features on Whympr 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 your loved ones, even without mobile data
Precise geolocation
Stay on the right track
Enhanced security
Enhanced security: always locatable, even without mobile data
Right after battery life, safety is the second most valued criterion for outdoor enthusiasts. To meet this need, the Outdoor Mode of the STELLAR-X5s Chamonix-Mont-Blanc Edition includes an automatic SMS sending feature 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 loved ones thus regularly receive your location, allowing them to track your progress or alert in case of an emergency.
Unlike other solutions, this feature is accessible without creating an account, without downloading an app, and can be activated with a single click: simple and effective security for all your outdoor activities.
Stay on the right track
The STELLAR-X5s Chamonix-Mont-Blanc Edition guarantees geolocation accuracy up to 5 meters, even in challenging environments like 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 error margins. The optimized architecture and layout of its antennas also prevent obstruction by the hand, ensuring continuous and reliable reception.
For the user, this translates into smoother navigation, precise tracking, and enhanced security during outdoor activities: hiking, trail running, 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 touchscreen even with most protective gloves (PPE). You can answer a call with gloves up to 2 mm thick and comfortably type text with gloves up to 1.1 mm thick. This performance is complemented by programmable action buttons, which provide direct access to essential functions without going through the screen.
In practice, there is no need to take off your gloves to check a map, answer a call, or take a photo. A valuable advantage when it's cold, in high mountains, or during activities where wearing gloves is essential — skiing, mountaineering, cycling, or professional tasks. Combined with Wet Touch technology, which ensures reliable use even in rain, condensation, or frost, the Glove Touch function guarantees your smartphone is always operational, whatever the conditions.
Endurant
54h36 of battery life
Endurance at the service of your adventures
High-capacity 4,500 mAh battery, tested according to Crosscall Standards for proven reliability.
54h36 of Battery Life
Endurance at the service of your adventures
The STELLAR-X5s Chamonix-Mont-Blanc Edition features a high-capacity 4,500 mAh battery, tested according to Crosscall Standards for proven reliability. It provides up to 54 hours and 36 minutes of battery life(2), which is more than two days of continuous use.
Designed to withstand repeated charging cycles, it maintains its performance over the seasons. Its smart protection features limit premature wear and extend its lifespan, while the 5-year warranty, including the battery(7), allows you to use your smartphone with complete peace of mind.
And because energy is meant to be shared, the STELLAR-X5s Chamonix-Mont-Blanc Edition can also serve as a power bank to recharge your other less durable devices.
Capture the action
The best image quality on a smartphone outdoor
At the heart
of the action
At the heart of the action
X-Link
a technology
charming
Compatibility with the ecosystem x-link
ATTACH, CHARGE, and TRANSFER IN ONE MOTION AND ENJOY 98% ENERGY EFFICIENCY WHILE CHARGING
Enhanced performance
5G/5GSA – WIFI 6/6E RAM 8GB / Storage 256GB Octa-core Processor 2.1 GHz
Enhanced performance
A 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 current networks and the ultra-fast speeds of the future 5G standard.
Faster downloads, smooth streaming, and immediate access to your shared files: enjoy connectivity designed to last over time.
- 5G & 5GSA Compatibility
- High and stable flow rates
- Optimized connection for streaming and data sharing
The best of Wi-Fi
With its Wi-Fi 6/6E compatibility, the STELLAR-X5s Chamonix-Mont-Blanc Edition takes advantage of the latest generation of routers and fiber optic connections to deliver boosted speeds and a more stable connection. The expanded Wi-Fi 6E band reduces interference, especially in dense urban areas, so your activities remain smooth wherever you are.
- Wi-Fi 6/6E
- Bandwidth optimized for fiber
- Less interference in crowded areas
High performance for a long time
Its Qualcomm® QCM5430 processor, built on a 6 nm process, combines power and energy efficiency. Optimized for durability, it benefits from the Extended Life program with performance and security updates until December 2031(5). The result: a smooth, responsive, and efficient smartphone, even after several years of use.
- Qualcomm® processor manufactured with 6 nm technology
- Extended Life Program (update until December 2031(5))
- Durable performance and low power consumption
Plenty of memory
With its 8 GB of DDR5 RAM, multitasking becomes smooth and responsive. Its 256 GB UFS 3.1 storage ensures fast saving of your photos, videos, and updates. You thus have ample 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
Completely smooth display
The 6.49'' Full HD+ IPS screen (1080 x 2400 px) automatically adjusts its refresh rate from 60 Hz to 120 Hz depending on your usage. Whether browsing the web, reading, or viewing documents, you enjoy smooth and clear display in all situations, while preserving battery life.
AI at the service of clear and powerful sound
Making calls remains an essential function, even in noisy environments. The STELLAR-X5s Chamonix-Mont-Blanc Edition features upHear®(6) noise reduction technology, previously reserved for professional use. Based on artificial intelligence, it captures and analyzes ambient sounds in real time to isolate the voice and reduce background noise by up to –60 dB.
This innovation combines with a dual speaker system (main 90 dB and hybrid 85.5 dB) oriented towards the user, to provide clearer communications and an immersive audio experience. Whether you are on a windy trail, in the middle of a lively shelter, or on a crowded street, your conversations remain clear and audible.
- Fraunhofer upHear® Noise Reduction(6) (AI)
- Noise reduction up to –60 dB
- Dual stereo speaker
- They are user-oriented for better clarity
Ergonomics designed for efficiency
Because an outdoor smartphone must be fast and easy to use, the STELLAR-X5s Chamonix-Mont-Blanc Edition focuses on ergonomics that save time in the most demanding situations. Its three physical buttons, two of which are fully programmable, allow you to trigger your essential functions with a single gesture: turn on the flashlight, start a Push-to-Talk call, open the camera, or send an emergency message, all without unlocking the screen.
The flashlight, especially popular with users, offers 5 lighting levels including a Boost mode. It combines high brightness, a wide beam, and long range to cover all uses: moving discreetly at night, inspecting an electrical panel, or even temporarily replacing a bike light.
- 3 physical buttons, including 2 programmable ones
- Direct activation of your essential functions (PTT, flashlight, photo, SOS, etc.)
- Time-saving: no need to unlock the screen anymore
- Powerful flashlight: 41 lumens, with a wide 75° beam and a range of 11.5m
Reinforced fixation with X-BLOCKER
Resistance to 20kg of pull-out force
X-BLOCKER
a grip that never lets go
Combined with the X-BLOCKER mechanical system, the X-LINKTM(3) system provides reinforced fastening capable of withstanding a pull-out force of up to 20 kg, ensuring complete reliability even in extreme conditions.
User benefits:
- Reinforced fixation with X-BLOCKER (20 kg tear resistance)
- Compatibility with a range of accessory ecosystems: bike mounts, car mounts, chest mounts like action cams, fixed or portable charging stations [link to accessories]
Resists
to all your outings
1.5M
Repeated falls
MIL-STD-810H Standard
IP68
All liquids
Including salt water
+300
Tests x-Labs
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
Use of the wet screen
Wet Lock
Touch lock in rain or underwater
Dry Max
Quick drying of speakers
total waterproofing
Complete waterproofing and tailored functions
Certified IP68, it is completely dustproof and can be submerged up to 2 meters deep for 30 minutes, including in saltwater and chlorinated water. To go further, smart features enhance its use in wet environments:
- Wet Lock: locks the touchscreen underwater to prevent accidental triggers, while keeping access to 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 water and quickly restore clear sound
Fidèle à vos
convictions
Built to last
Enjoy its 5-year warranty, battery included(5), to extend its use
Naturally eco-designed
Equipped with a chassis made of 100% recycled aluminum and still highly repairable
Extended OS and security updates
Supports updates up to Android 18 and security maintenance until Dec 31
Warranty, eco-design, update
A unique 5-year warranty, including the battery(7)
The STELLAR-X5s Chamonix-Mont-Blanc Edition comes with a long 5-year warranty, including the battery(7) — a rare commitment in the world of mobile phones. Its 4,500 mAh lithium polymer battery, tested according to Crosscall Standards, offers up to 54h 36min of battery life(2) and maintains its performance over time. If needed, it can be replaced under warranty, extending the smartphone's lifespan and avoiding premature replacement.
This exceptional warranty reflects 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 rugged smartphone must also be responsible, the STELLAR-X5s Chamonix-Mont-Blanc Edition is made with recycled materials: a chassis made of 100% recycled aluminum and a back cover made of 50% recycled polycarbonate. Its corners are made of elastic and durable TPU, capable of absorbing shocks in case of a fall, regardless of the angle of impact. A design built to last while reducing its environmental footprint.
Its packaging, made from 100% recycled and plastic-free materials, also reflects this commitment.
Designed to be repairable, its spare parts will remain available for 10 years(8), ensuring a possible second life and reducing environmental impact.
A secure smartphone updated until 2031
Delivered with Android(9) 15, the STELLAR-X5s Chamonix-Mont-Blanc Edition will receive 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 professional data, it features enhanced encryption, a biometric sensor, and the latest certified cryptographic suites. This allows you to enjoy a rugged, secure, and consistently high-performing outdoor smartphone, even after several years of use.
