Garmin Approach S50 vs Garmin Descent G2
Better figure, where one is clearly better
| GarminApproach S50 | GarminDescent G2 | |
|---|---|---|
| Overview | ||
| Released | January 2025 | February 2025 |
| Display | ||
| Case sizes | 43 mm | 45.5 mm |
| Panel | OLED | OLED |
| Always-on display | Yes | Yes |
| Display detail | 30.4 mm (1.2 inch) AMOLED touchscreen, 390 x 390 pixels; optional always-on display, ambient-light sensor and large-font option. Two physical buttons. | 30.4 mm (1.2 inch) AMOLED touchscreen, 390 x 390 pixels; optional always-on display, large-font option and red-shift mode. Five physical leakproof inductive buttons. |
| Screen protection | Corning Gorilla Glass 3 lens. | Sapphire crystal lens. |
| Health and fitness | ||
| ECG | No | No |
| Blood oxygen | Yes | Yes |
| Skin temperature | No | No |
| Sleep apnoea alerts | No | No |
| High blood pressure alerts | No | No |
| Body composition | No | No |
| Fall detection | No | No |
| Crash detection | No | No |
| GPS | Single-band | Single-band |
| Water resistance | 50 m | 100 m (better) |
| Sensors | GPS, GLONASS and Galileo; Garmin Elevate wrist heart rate, Pulse Ox, compass, gyroscope, accelerometer and ambient-light sensor. No multi-band positioning is listed; maker does not number the heart-rate sensor generation. External tempe accessory supplies ambient temperature. | GPS, GLONASS and Galileo for surface positioning; no multi-band positioning mode. Depth sensor, barometric altimeter, three-axis compass, gyroscope, accelerometer, thermometer, Garmin Elevate wrist heart-rate monitor and Pulse Ox sensor. Satellite signals do not work underwater. |
| Health features | Continuous heart rate, high/low alerts, respiration, Body Battery, stress, advanced sleep score/coach, nap detection, HRV status, Health Snapshot and fitness age. Pulse Ox spot checks and optional sleep monitoring. Hydration and menstrual-cycle/pregnancy features use Garmin Connect and an optional Connect IQ widget; these are wellness features, not medical diagnosis. | Continuous heart rate, resting rate and high/low alerts; respiration, HRV status, Body Battery, stress, relaxation reminders, sleep score, sleep coach, nap detection, breathing variations and Health Snapshot. Spot-check, overnight or all-day Pulse Ox; hydration and menstrual-cycle or pregnancy logging through Garmin Connect. Not a medical device; Pulse Ox availability varies by country. |
| Fitness features | Over 43,000 preloaded golf courses; front/middle/back green distances, hazards and layups, green view with manual pin position, PinPointer and elevation-adjusted PlaysLike distances. Digital scorecard, handicap/Stableford scoring, statistics and custom targets. AutoShot detects fairway shots automatically without club sensors; putts are not detected. Optional CT1 tags require tapping the watch; CT10 sensors add automatic club tracking. Compatible Z30 laser range finder shares measured distances. Enhanced CourseView vector maps, touch targeting and green contours need paid Garmin Golf membership; base yardages and PlaysLike do not. Tournament mode disables non-permitted features. Running, cycling, pool swimming, strength, HIIT, yoga, Pilates and other sport profiles; workouts, animated exercises, VO2 max and recovery time. Current web table lists open-water metrics, but the exact activity list and owner guide document pool swimming only; do not treat that generic row as an established open-water profile. | Seven dive modes — single gas, multi-gas, closed-circuit rebreather, gauge, apnea, apnea hunt and pool apnea. Bühlmann ZHL-16C decompression model with adjustable gradient factors; air, Nitrox and Trimix, one bottom gas and up to eleven decompression/backup gases. Dive planning, custom data screens, compass, configurable audible/vibration alarms, automatic surface entry/exit coordinates and Garmin Dive logs. Dive Readiness, NDL Aware depth metrics, post-dive activity guidance and compatible-computer settings sharing. No wireless tank-pressure air integration. More than 100 sport profiles, including running, cycling, triathlon and pool/open-water swimming; Garmin Coach, daily suggested workouts, VO2 max, training readiness and status, training load/effect, recovery time, heat/altitude acclimation, running dynamics and power, and breadcrumb navigation. Some advanced running and cycling metrics require compatible external sensors. |
| Safety features | Incident detection during supported activities, assistance and LiveTrack require a paired compatible phone and available network; not standalone emergency communication. | Incident detection during supported activities, assistance and live-location sharing require a paired compatible smartphone and mobile connectivity. Above-water inReach Mini 2 remote messaging/SOS additionally requires the separately sold communicator, dive case and satellite subscription. |
| Battery and connections | ||
| Battery life (maker's claim) | Up to 10 days | Up to 10 days |
| In low-power mode | – | Up to 12 days |
| Mobile data option | No | No |
| Works with | iPhone and Android | iPhone and Android |
| Storage | 4 GB | 4 GB |
| Battery life detail | Up to 10 days in smartwatch mode and 15 hours in GPS mode. Maker web conditions use gesture wake in smartwatch mode and always-on while golfing; October 2025 owner guide labels the 15-hour figure all-satellite mode. Actual life depends on sensors, notifications and other features. Battery saver is available but no separate duration is published. | Built-in rechargeable lithium-ion battery. Up to 10 days with gesture display or 4 days with always-on display; up to 12 days in battery-saver watch mode, 27 hours diving, 20 hours GPS-only, 15 hours all-satellite systems, 44 hours maximum-battery GPS or 10 days expedition GPS. Claims depend on settings and connected sensors; the exact September 2026 owner guide confirms that battery-saver endurance is days, not the hours in a review table. |
| Charging | Built-in rechargeable lithium-ion battery; Garmin proprietary charging/data connector and supplied cable connected to a USB charging port. | Proprietary Garmin clip charger and USB charging/data cable. Charging temperature 0–45°C; operating/storage -20–60°C, underwater operating 0–40°C. Battery capacity, fast-charge wattage and full-charge time are not published. |
| Connectivity | Bluetooth, ANT+ and Wi-Fi; Garmin Golf, Garmin Connect, Garmin Express and Connect IQ. Garmin Pay with supported banks; downloaded personal music and supported Spotify/Amazon Music/Deezer services may need subscriptions and Bluetooth headphones. Phone notifications; Android-only text replies and notification images. No cellular configuration. | Bluetooth Smart and ANT+; Garmin Connect, Garmin Dive and Connect IQ; iPhone and Android notifications, calendar, weather, find-phone/watch and smartphone music controls. Text replies and notification images are Android-only. Garmin Pay with participating providers. No standalone cellular connection, Wi-Fi or onboard music playback. |
| Storage | – | 4 GB for activity/dive history and compatible Connect IQ content; capacity does not establish offline music playback. |
| Design | ||
| Weight (lightest version) | 29 g (better) | 61 g |
| Software | Garmin | Garmin |
| Case materials | Anodised aluminium bezel, Gorilla Glass 3 lens and ComfortFit nylon band with hook-and-loop fastening; Black/Slate and Ivory/Cream Gold finishes. | Sapphire lens; fibre-reinforced ocean-bound plastic bezel and case; silicone band. Garmin says all plastic in the housing, bezel and buttons is recycled ocean-bound plastic, rather than claiming the entire watch is recycled. |
| Size | Current UK table: 43 x 43 x 11.4 mm, 29 g. Ivory S/M nylon band fits 127–190 mm wrists; Black M/L fits 145–217 mm. 20 mm quick-release attachment. UK web table calls it industry standard, while October 2025 owner guide says not compatible with third-party bands; retain that compatibility conflict. Japanese launch table gives 12.5 mm thickness, so UK dimensions are used here without treating the regional discrepancy as another model. | 45.5 x 45.5 x 15.2 mm; 61 g with band. |
| Water resistance detail | – | Dive-rated 100 m / 10 ATM; depth sensor accurate from 0 to 100 m under EN 13319, with 0.1 m resolution below 100 m. This model's explicit diving rating is distinct from an ordinary watch pressure claim. |
| Bands | – | 22 mm QuickFit bands; standard silicone fits wrists 135–230 mm, supplied extra-long silicone adjustment strap 128–373 mm. The UK table's '22 m' band entry is a unit typo; the exact manual and QuickFit accessory designation use mm. |
| Colours | – | Black/Black and Paloma/Shell Pink are currently sellable on the UK exact-model page. South Korea's August 2026 BARREL Deep Blue cosmetic edition adds an Azure band, Wave watch face and co-branded swim cap; no new hardware generation is claimed. Regional Garmin Pay availability differs. |
| In the box | – | Descent G2 watch, extra-long adjustment strap, charging/data cable and documentation. Korean BARREL edition adds its labelled regional accessories. |
| Reference and release detail | Garmin US announcement on 21 January 2025 states available now; this establishes earliest documented on-sale date. Japanese release was 30 January 2025. UK first shipping day is not independently established. S44 is a co-launched lower-feature model, not an evidenced predecessor. | – |
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