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Stellar-X5s
Designed for the summits, made for you
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OUTDOOR DESIGN
The sleek and iconic design of the STELLAR-X5s Chamonix-Mont-Blanc Edition pays tribute to the peaks. Its white back evokes the purity of eternal snow, the Chamonix-Mont-Blanc logo symbolizes a union of excellence, and the "Open the Way" engraving on the edge embodies the shared values of freedom, performance, and sustainability.
New
Outdoor fashion
Outdoor mode activated
Essential notifications
Reconnect by turning off non-essential notifications
Essential notifications
stay focused on the essentials
When you're out hiking, mountain biking, or doing other sports, notifications can quickly become intrusive. With the Outdoor Mode on the STELLAR-X5s Chamonix-Mont-Blanc Edition, you can automatically pause all non-essential notifications (social media, emails, news, etc.), while remaining available for what really matters: urgent calls and texts, or navigation apps.
This feature transforms the rugged smartphone into a reliable companion that fully reconnects you to your outdoor environment instead of distracting you from it.
Extended battery life
11 settings to customize to gain up to 25% more battery life
Extended battery life
25% more battery life 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 on the STELLAR-X5s Chamonix-Mont-Blanc Edition activates an advanced, customizable energy profile, automatically adjusting up to ten settings such as brightness, standby mode, and the deactivation of WiFi, Bluetooth, and the secondary SIM card.
Result: up to 25% more battery life(1), giving you several extra hours to extend a hike, a trip out to sea, or simply to save battery power in case of the unexpected.
Built-in outdoor apps
Plan your outings by taking advantage of exclusive features on Whympr and Iphigénie.
Built-in outdoor apps
Chamonix – The official app for the Mont Blanc Valley
Developed by the Compagnie du Mont-Blanc and the Tourist Office, the Chamonix app brings together all the practical information you need to make the most of the valley. Free and comprehensive, it is aimed at both residents and visitors looking for efficiency and freedom.
Key features:
- Weather reports and updated mountain conditions
- Live webcams to view the condition of the terrain and peaks
- Information on ski lifts, schedules, and real-time opening times
- Hiking, trail running, and mountain biking routes to explore the valley in all seasons
- Bus schedules and route planning to simplify your travel
- Directory, city map, and transportation information always at your fingertips
- Recharge ski passes online, without going to the ticket office
Whympr – Plan your outdoor adventures anywhere in the world
Founded in 2017 at the foot of Mont Blanc, Whympr is the go-to app for all outdoor enthusiasts. Whether you're a hiker, mountaineer, climber, or ski tourer, it brings together everything you need to prepare your outings, plan your itineraries, and share your experiences with an active community.
Key features:
- Over 100,000 routes and points of interest worldwide
- Topographic maps (IGN, SwissTopo, Fraternali, etc.), 3D map, and offline mode
- Advanced mountain weather forecasts, geolocated avalanche reports, and access to 23,000 webcams
- GPS tracking, creation and import/export of GPX tracks, ride statistics
- Engaged community: sharing experiences and recent feedback from the field
- Web & Mobile tool to prepare your outings on your computer and access them on your phone
Iphigénie – The cartographic reference
Acclaimed by millions of users since 2010, Iphigénie is the essential mapping application for hikers, foresters, guides, geologists, and firefighters. Its strength lies in offering access to IGN maps even without a network connection, with advanced tools to prepare and follow your itineraries with complete peace of mind.
Key features:
- More than 70 topographic base maps and layers: IGN, SwissTopo, Fraternali, satellite maps, cadastral maps, etc.
- Offline mode: download maps for use without a connection
- Track and waypoint management: creation, import, and export in GPX format
- Real-time tracking: geolocation, distance, speed, altitude
- Voice alerts and Beacon feature for remote tracking by your loved ones
Exclusive benefits
To help you get the most out of your outdoor activities, Crosscall, Whympr, and Iphigénie have decided to offer you exclusive benefits:
- Free access to Whympr premium features: track recording and track creation tracks
- 3 months free with the Outdoor Pack, including enhanced maps, offline mode, and advanced preparation tools. advanced preparation tools.
Enhanced security
Automatically share your location with your loved ones, even without mobile data
Accurate geolocation
Stay on the right track
Enhanced security
Enhanced security: always locatable, even without mobile data
Right 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 SMS sending 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) coverage. Your loved ones will receive regular updates on your location, allowing them to track your progress or alert you in case of unforeseen circumstances.
Unlike other solutions, this feature is accessible without creating an account or 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 to within 5 meters, 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 optimized layout of its antennas also prevent obstruction by the hand, ensuring continuous and reliable reception.
For users, this translates into smoother navigation, accurate tracking, and enhanced safety during outdoor activities such as hiking, trail running, mountaineering, or cycling.
Use with gloves
Glove Touch: use your smartphone without removing your gloves
Use with gloves
Glove Touch: use your smartphone without removing 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 having to use the screen.
In practice, you no longer need to remove your gloves to consult a map, answer a call, or take a photo. This is a valuable asset in cold weather, in the mountains, or during activities where gloves are essential—skiing, mountaineering, cycling, or professional work. Combined with Wet Touch technology, which ensures reliable use even in rain, condensation, or frost, the Glove Touch feature ensures that your smartphone is always operational, whatever the conditions.
Endurance
54 hours and 36 minutes of battery life
Endurance for your adventures
High-capacity 4,500 mAh battery, tested according to Crosscall Standards for proven reliability.
54 hours and 36 minutes of battery life
Endurance for 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), or more than two days of continuous use.
Designed to withstand repeated charging cycles, it maintains its performance over the seasons. Its intelligent protection features limit premature wear and tear 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 be used as a power bank to recharge your other devices with shorter battery life.
Capture the action
The best image quality on an outdoor smartphone outdoor
At theheart
of the action
At theheart of the action
X-Link
a technology
that sticks
Compatibility with the ecosystem x-link
ATTACH, CHARGE, AND TRANSFER IN ONE SIMPLE STEP AND ENJOY 98% ENERGY EFFICIENCY WHEN CHARGING
Enhanced performance
5G/5GSA – Wi-Fi 6/6E 8GB RAM / 256GB storage 2.1 GHz octa-core processor
Enhanced 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 current networks and the ultra-fast speeds of the future 5G standard.
Faster downloads, smooth streaming, and instant access to your shared files: enjoy connectivity designed to last.
- 5G & 5GSA compatibility
- High and stable flow rates
- Connection optimized 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 new generations of routers and fiber optics to offer boosted speed and a more stable connection. The expanded Wi-Fi 6E band reduces interference, particularly in dense urban areas, so you can enjoy smooth connectivity wherever you are.
- Wi-Fi 6/6E
- Optimized bandwidth for fiber
- Less interference in congested areas
Long-lasting performance
Its Qualcomm® QCM5430 processor, engraved in 6 nm, combines power and energy efficiency. Optimized for durability, it benefits from the Extended Life program with performance and security updates until December 2031. The result: a smooth, responsive, and energy-efficient smartphone, even after several years of use.
- Qualcomm® processor engraved in 6 nm
- Extended Life Program (updated through December 2031(5))
- Sustainable performance and low consumption
Memory in abundance
With 8 GB of DDR5 RAM, multitasking becomes smooth and responsive. Its 256 GB UFS 3.1 memory ensures fast saving of your photos, videos, and updates. This gives you plenty of space to store all your content and access it instantly.
- 8 GB of DDR5 RAM
- 256 GB of 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 you're browsing the web, reading, or viewing documents, you'll enjoy a smooth, clear 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 features upHear® noise reduction technology(6), previously reserved for the professional world. 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 toward the user to provide clearer communications and an immersive audio experience. Whether you're on a windy trail, in the middle of a busy 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 speakers
- User-oriented sound for greater clarity
Ergonomics designed for efficiency
Because an outdoor smartphone needs to 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 activate essential functions with a single gesture: turn on the flashlight, initiate a Push-to-Talk call, open the camera, or send an emergency message without having to unlock the screen.
The torch, which is particularly popular with users, offers five lighting levels, including a Boost mode. It combines high brightness, a wide beam, and long range to cover all uses: moving around discreetly at night, inspecting an electrical panel, or even temporarily replacing a bicycle light.
- 3 physical buttons, 2 of which are programmable
- Direct activation of your essential functions (PTT, flashlight, photo, SOS, etc.)
- Time saving: no need to unlock the screen
- Powerful flashlight: 41 lumens, with a wide beam of 75° and a range of 11.5m
Reinforced fastening with X-BLOCKER
Resistance to 20kg of pulling force
X-BLOCKER
a fastening that won't come loose
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 total reliability even in extreme conditions.
Benefits for the user:
- Reinforced fastening with X-BLOCKER (20 kg pull-out resistance)
- Compatibility with a wide range of accessories: bike mounts, car mounts, chest mounts for action cameras, fixed or portable charging stations [link to accessories]
Resist
all your outings
1.5M
Repeated drops
MIL-STD810H standard
IP68
All liquids
Including salt water
+300
x-Labs tests
IKO5
Scratch resistant
Gorilla Glass Victus 2
-20+60°
Operating temperatures
Resistance and waterproofing
Durable and waterproof: built to last anywhere
The STELLAR-X5s Chamonix-Mont-Blanc Edition embodies Crosscall's expertise: a rugged smartphone designed from the outset to withstand shocks, drops, temperature variations, and prolonged immersion. Designed for demanding outdoor environments, it remains reliable and functional where many phones reach their limits.
A robust design validated by rigorous testing
Rigid aluminum frame, fiberglass-reinforced polycarbonate structure, and protected corners: each material has been chosen to withstand impacts. The STELLAR-X5s Chamonix-Mont-Blanc Edition has been tested to withstand drops of 1.5 meters onto hard surfaces and 500 repeated drops of 1 meter. Its chassis has also proven its strength when subjected to pressure equivalent to 50 kg.
Compliant with the MIL-STD-810H military standard, it guarantees robustness verified according to demanding protocols.
- Drop resistance from 1.5 m
- Aluminum frame + fiberglass polycarbonate
- Intensive testing (500 drops, 50 kg of pressure)
- MIL-STD-810H military certification
A screen protected by durable glass
Its Corning Gorilla Glass Victus 2 protective glass combines reliability and resistance. With an IK05 rating, it can withstand the impact of a 250 g object dropped from a height of 28 cm and can withstand shocks of up to 1.5 meters on a hard surface. Positioned slightly recessed, it limits the risk of damage when dropped flat and focuses its protection on direct impacts.
- Corning Gorilla Glass Victus 2
- IK05 resistance
- Enhanced protection against direct impacts and scratches
Reliable for all your outdoor activities
Designed to withstand intensive use, the STELLAR-X5s Chamonix-Mont-Blanc Edition remains functional in demanding environments. It continues to operate even when exposed to temperatures ranging from -20°C to +60°C, whether hiking in the high mountains, at sea, or during professional field missions.
- Resistant to temperature variations (–20°C to +60°C)
- Designed for outdoor and professional environments
Wet Touch
Using the wet screen
Wet Lock
Touch lock in the rain or when submerged
Dry Max
Quick drying of speakers
complete waterproofing
Complete waterproofing and tailored functions
IP68 certified, it is completely dustproof and can be submerged up to 2 m deep for 30 minutes, even in salt water and chlorinated water. To go even further, smart features improve its use in wet environments:
- Wet Lock: locks the touchscreen underwater to prevent accidental activation, while maintaining access to physical buttons (photo, video, key functions).
- Wet Touch: screen can be used 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.
True to your
convictions
Guaranteed to last
Take advantage of its 5-year warranty, including the battery(5), to extend its use.
Eco-designed by nature
Equipped with a 100% recycled aluminum frame that is still highly repairable
Extended OS and security updates
See Android 18 coming and security support until December 31
Warranty, eco-design, updates
A unique 5-year warranty, including the battery(7)
The STELLAR-X5s Chamonix-Mont-Blanc Edition comes with a long-term 5-year warranty, including the battery(7)—a rare commitment in the world of telephony. Its 4,500 mAh lithium polymer battery, tested according to Crosscall Standards, offers up to 54 hours and 36 minutes of battery life(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 warranty demonstrates Crosscall's confidence in the quality and durability of its products, offering you complete peace of mind for your outdoor adventures.
A more responsible design
Because a rugged smartphone should also be responsible, the STELLAR-X5s Chamonix-Mont-Blanc Edition is designed with recycled materials: a 100% recycled aluminum frame and a 50% recycled polycarbonate back cover. Its corners are made of elastic and resistant TPU, capable of absorbing shocks in the event 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 repaired and repairable, its spare parts will remain available for 10 years, ensuring a second life and limiting environmental impact.
A secure smartphone that will remain up to date 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 security patches guaranteed 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. You'll enjoy a rugged, secure, and consistently high-performance outdoor smartphone, even after several years of use.
