| Manufacturer | Garmin |
|---|---|
| Type | Large-format dive computer with a monochrome MIP display |
| Series | Descent X |
| Released | 3 November 2026 (UK orders from 6 November 2026) |
| Price at launch | GBP 299.99 / USD 349.99 |
| Predecessor | None; the entry model in the Descent X range |
| Successor | Not yet announced; see Release Radar |
| Size | 56.4 x 72.2 x 20.2mm |
| Variants | Single edition; optional bezel guards in four colours |
| Colours | Black, with aqua and other bezel guards sold separately |
Specifications as at launch. Features reflect the latest Garmin software.
Expert opinion | Descent X range compared | Specifications | Battery life | Features | Quick answers | Further reading
Expert opinion
Who it suits: Beginner and recreational scuba divers, dive schools, and anyone who wants a dependable backup computer with a big, clear display and a long battery.
The Descent X10 keeps to the essentials. It covers single-gas scuba, apnea and gauge diving with air and nitrox, runs the same Bühlmann ZHL-16c model with gradient factors as the dearer Descents, and lets you set conservatism, safety stops and deep stops to suit. NDL Aware shows how a change of depth will affect your remaining no-deco time, and audible and vibration alerts cover ascent rate, PO2 and deco. The Garmin Dive app syncs your logs and marks entry and exit points from your phone, and rental mode lets a dive centre reset the computer between customers. The app can also simulate a full dive, so you can practise a scenario before getting in the water.
The 2.1-inch monochrome MIP screen uses large data fields and an always-on backlight, so it is easy to read at depth. The leakproof inductive buttons have no openings to flood, and the battery lasts up to 50 hours of diving, far longer than the X30 or X50i. What you give up is colour, built-in GPS, trimix, air integration and SubWave messaging. For a first dive computer, or a backup at this price, those are fair trades.
Garmin Descent X10
Big, clear dive computer with a 50-hour battery, ideal as a first computer or a backup.
Descent X range compared
Garmin sells three large-format Descent X dive computers. The table shows where the Descent X10 sits.
| Feature | Descent X10 | Descent X30 | Descent X50i |
|---|---|---|---|
| Display | 2.1″ monochrome MIP | 2.4″ colour LCD | 3″ colour LCD touchscreen (surface only) |
| Lens | Chemically strengthened glass | Chemically strengthened glass | Sapphire crystal |
| Dive rating | 100 metres | 100 metres | 200 metres |
| Dive modes | Single-gas, gauge, apnea | Single-gas, multi-gas, gauge | Single-gas, multi-gas, gauge, CCR |
| Gases | Air and nitrox to 40% O2 | Air, nitrox and trimix to 100% O2 | Air, nitrox and trimix to 100% O2 |
| Air integration | No | No | Yes, up to 8 Descent T2 transceivers |
| Diver messaging | No | No | SubWave preset messages |
| Surface GPS and compass | No; entry and exit points from your phone | Yes | Yes |
| Maps | No | No | TopoActive and DiveView maps |
| Dive light | No | No | Yes |
| Dive battery (default) | Up to 50 hours | Up to 30 hours | Up to 16 hours |
| Weight with bands | 130g | 198.4g | 280g |
| © the5krunner. Link required. | |||
Specifications
The Descent X10 comes in one size with a hinged silicone band that fits over a wetsuit. The housing and bezel are made from recycled ocean-bound plastic.
| Specification | Descent X10 |
|---|---|
| Display | |
| Display type | Monochrome MIP, sunlight-readable |
| Display size | 2.1″ diagonal |
| Resolution | 320 x 240 pixels |
| Colour | No |
| Lens | Chemically strengthened glass |
| Touchscreen | No, buttons only |
| Physical | |
| Dimensions | 56.4 x 72.2 x 20.2mm |
| Weight | 90g without bands; 130g with bands |
| Case and bezel | Fibre-reinforced ocean-bound plastic |
| Band | Hinged silicone; 26mm QuickFit compatible |
| Band fit | 140 to 360mm |
| Buttons | Leakproof inductive buttons |
| Dive rating | 100 metres |
| © the5krunner. Link required. | |
| Sensors and positioning | |
| GNSS | None; connected GPS from a paired phone |
| Compass | No |
| Other sensors | Depth sensor, thermometer |
| Connectivity and storage | |
| Connectivity | Bluetooth |
| Storage | 120MB, up to 200 dives |
| Maps | No |
| Dive light | No |
| Charging | Garmin proprietary plug charger |
| © the5krunner. Link required. | |
Battery life
Battery figures are Garmin’s official ratings. The battery is rechargeable.
| Mode | Descent X10 |
|---|---|
| Dive mode | Up to 50 hours |
| Standby | Up to 6 months |
| © the5krunner. Link required. | |
Features
Diving
- Single-gas, gauge and apnea dive modes
- Rated to 100 metres
- Bühlmann ZHL-16c decompression model with gradient factors
- Air and nitrox from 21 to 40% O2, with 1 bottom gas and up to 11 backup gases
- PO2 up to 1.6
- Basic NDL dive planner
- NDL Aware depth metrics show how changing depth affects your no-decompression limit
- Customisable conservatism (low, medium, high or custom gradient factors) and deep stops
- Customisable safety stop (off, 3 or 5 minutes)
- Audible and vibration alarms for ascent rate, PO2, OTU, NDL and deco
- Up to 40 custom depth or time alerts per dive mode
- Ascent and descent rate indicator
- Automatic dive start and end with a custom end-dive timeout
- Surface diver status: surface interval, N2 loading, CNS, OTU and tissue compartments
- No-fly time and automatic altitude adjustment
- 24-hour deco violation warning
- Backlight with configurable intensity, activated by depth or button
- Flip-screen mode puts the buttons above the display
Dive centres and backup
- Rental mode resets settings quickly between divers
- Backup support mode
- Setup sharing syncs gases, conservatism and alerts with a compatible Descent primary computer
Connect
- Dive logs upload automatically to the Garmin Dive app
- Dive entry and exit locations saved through the paired Dive app
- Replaceable bezel guards in four colours (sold separately)
- Passcode lock
Garmin Descent X10
Big, clear dive computer with a 50-hour battery, ideal as a first computer or a backup.
Quick answers
When was the Garmin Descent X10 released?
Garmin announced the Descent X10 on 3 November 2026 at GBP 299.99 or USD 349.99. UK orders opened on 6 November 2026.
How deep can the Descent X10 dive?
The Descent X10 is rated to 100 metres and supports single-gas, gauge and apnea diving with air and nitrox up to 40% O2.
Does the Descent X10 have GPS?
No. It saves dive entry and exit points using your paired phone’s location through the Garmin Dive app. The Descent X30 adds built-in surface GPS and a compass.
What is the difference between the Descent X10 and X30?
The X30 adds a colour screen, built-in GPS, a compass, multi-gas and trimix diving and a deco planner. The X10 has the longer battery, lasting up to 50 hours of diving against 30, and is lighter.
How long does the Descent X10 battery last?
Garmin rates the Descent X10 for up to 50 hours in dive mode and up to 6 months in standby.
Further reading
- Which Garmin Descent to buy
- Garmin Descent X10 launch report
- Garmin Descent X30 specifications
- Garmin Descent X50i specifications
- Garmin watch and dive computer specifications
- Release Radar: upcoming Garmin devices
Related dive computers
Step up: Garmin Descent X30, with a colour screen, surface GPS, a compass and trimix.
Wrist alternative: Garmin Descent G2, a watch-style dive computer that is also a full sports watch.
Small things I always use
- Garmin 90-degree charging adapter: Charges your Garmin from any USB-C cable. Essential when travelling. I use one.
- Body Glide: The blue anti-chafe stick swimmers and runners carry. I use it.
- Speedo earplugs: Fewer ear infections and no cold-water dizziness. I use them.
- Dryrobe Advance: My winter changing robe for open-water swims. I use one. A cheaper option is the AONYIYI changing robe.
- Maurten: Race fuel that stays easy on the stomach. I use them.
- Beet It Sport nitrate shots: Beetroot shots I take in the days before a race. I use them.
- Garmin charging puck: The quickest way to top up before a session. I use one.
- Injinji: Toe socks that stop rubbing, so you run more. I use them.
- Ultimate toe protectors: Stop black toenails on long runs. They work. I use them.
- Compressport R2 v2 calf sleeves: My calf sleeves of choice. I use them.
- Cellucor C4: My pre-workout before hard sessions.
- TPU tubes: Schwalbe Aerothan, Tubolito and Pirelli SmarTube. Light, tiny spares. I use all three.
- G8 insoles: Adjustable insoles that are good. I use them.
- Cycplus Cube: A 97g electric pump that gets a road tyre rideable in two minutes. I carry one. 5% off with code THE5KRUNNER.
Watches and sensors
- Polar H10: My daily driver for waking HRV.
- Polar Verity Sense: My backup arm-worn HR sensor.
- Nomad bedside charger: Charges my iPhone and Apple Watch overnight. I use it, and many of their bands.
- Train.Red: The best muscle oxygen sensor I’ve used.
- Tymewear: Accurate heart rate and reliable ventilatory zones. I use it to pace endurance rides over an hour.
- Garmin Forerunner 970: A pro-grade triathlon watch. I use this.
- Apple Watch Ultra 4: My daily smartwatch. No phone needed on rides.
- Garmin Fenix 9 Pro: I’ve just bought one.
On the bike
- Continental GP5000 for everyday riding, and Aero 111 on the front for special occasions.
- Helmets: Specialized S-Works Evade 3 for road riding, and Rudy Project Wing for TT-style races. I use both.
- Ravemen FR300: A front light that mounts under your Garmin or Wahoo. I use one.
- Ravemen FR1000: The light and the computer mount in one unit, so nothing else goes on the bars. Better than mine.
- Ravemen FR1500SE: 1,500 lumens hanging under your Garmin, for proper night rides.
- Ravemen FR1100SE: 1,100 lumens under your Garmin, and up to 46 hours on slow flash.
- Ravemen FR500: A brighter FR300 with the same mount.
- Wahoo TRACKR Radar: I use it on one bike and Varia on the other. They perform the same.
- Garmin Varia RTL515: Radar that warns you of cars from behind. I use this model.
- Wahoo ELEMNT Roam 3: The bike computer that’s easy to use. I use mine on most rides.
- Favero Assioma Pro RS2: Accurate power pedals that swap easily between bikes. I use this model.
Home and indoor training
- NPE Runn: Makes my basic treadmill smart, sending more accurate speed and distance to my watch and Zwift. I use it.
- Google Wifi: Keeps Zwift connected in my pain cave. I use it.
- Apple TV 4K: Zwift on the big screen. I use two.
- Google Nest Doorbell (wired, 2nd gen): My video doorbell, running in both Google Home and Apple Home. I use it.
Health, recovery and sleep
- FreeStyle Libre 3 Plus: Shows how my blood sugar responds to diet.
- hDrop: Measures my sweat loss in summer and indoors.
- Fourth Frontier Zone: Checks my heart under load in hard sessions.
- Kineon MOVE+: Red and infrared light for sore knees, Achilles and other joints after hard training. I use it.
- Oura Ring 5: My partner’s recovery tracker of choice.
- Eight Sleep: A cooling mattress cover my partner and I use nightly.
Reader-Powered Content
This content is not sponsored. It’s mostly me behind the labour of love, which is this site, and I appreciate everyone who supports it.
Support the site: Follow (free, fewer ads) · Subscribe (paid, ad-free) · Buy Me A Coffee
Written by real people, with AI assistance. Fact-checked and verified for originality. See the Editorial Policy. FTC: Affiliate Disclosure — some links pay commission. As an Amazon Associate, I earn from qualifying purchases.
