Smartwatches · 2026 · Samsung

Samsung Galaxy Watch Ultra2 (47 mm, LTE)

The Galaxy Watch Ultra2 is Samsung’s rugged smartwatch that went on sale in August 2026. It has a 47mm titanium case, a 1.5-inch Super AMOLED display reaching 5,000 nits, the Snapdragon Wear Elite, 64 GB of storage, an 800 mAh battery, dual-frequency GPS, LTE and Wear OS 7, plus 10 ATM, IP69K and MIL-STD-810H ratings and an 86 dB emergency siren. Battery life stands out in testing and owner reviews; slow charging, lagging heart-rate readings early in workouts and Android-only support are among its limits.

SM-L715 · 47mm titanium case, LTE; Titanium Silver and Titanium Gray. The US version is SM-L715U and the European/Australian version SM-L715F; LTE bands vary by country.

Specifications

SpecificationValue
AvailabilityFrom 7 August 2026 in 106 markets
Display1.5-inch (38.5 mm) Super AMOLED; 498 × 498
BrightnessUp to 5,000 nits

This is peak brightness aimed at readability in sunlight, not sustained full-screen brightness.

Case47 mm; titanium on the front and back cover areas, plastic and other materials elsewhere in the frame
ProcessorSnapdragon Wear Elite; 5 cores (2.1 and 1.95 GHz)
Memory and storage2 GB RAM; 64 GB (49.3 GB available)
Battery800 mAh typical; up to 60 hours with AOD on, 80 hours with it off

AOD (always-on display) lets you read the watch without raising your wrist but cuts battery life by roughly a quarter.

ChargingFast charging up to about 40% in 30 minutes
Operating systemWear OS 7; security updates until 31 July 2031
WirelessBluetooth 6.0; Wi-Fi 802.11a/b/g/n (2.4 and 5 GHz); NFC
Cellular4G LTE (FDD/TDD), 3G WCDMA; eSIM

LTE use depends on country and carrier support; the watch can make calls and use data without a phone.

LocationGPS, GLONASS, BeiDou, Galileo, QZSS; dual-frequency (L1+L5) GPS

Receiving L1 and L5 together reduces errors caused by reflected signals near tall buildings and under trees.

SensorsOptical heart rate, electrical heart (ECG), BIA, temperature, accelerometer, gyro, barometer, geomagnetic, light

BIA estimates body composition using a weak current through the wrist; ECG readings use the electrical heart sensor.

Durability10 ATM; IP69K; EN13319; MIL-STD-810H

Samsung lists 100 m water resistance under ISO 22810 and operation between −20 and 55 °C while worn. EN13319 is a diving equipment standard.

Buttons and sirenThree buttons and an orange Quick Button; holding it for 5 seconds sounds an 86 dB siren (audible up to 180 m)

Pressing the home button five times starts an emergency SOS.

Size and weight47.4 × 47.1 × 10.7 mm; 61.5 g
Phone compatibilityAndroid 13 or later phone with at least 1.5 GB of memory

Pairing with an iPhone is not supported.

From the manufacturer

Samsung presents the Watch Ultra2 with an impact-resistant titanium case, a 5,000-nit display and tracking modes aimed at outdoor sports. Samsung Australia

Strengths and limitations

  • TechRadar wore the watch for five days and four nights; with the always-on display it lasted about 60 hours, matching Samsung’s figure. At the start of runs heart rate sometimes read about 20 bpm lower than an Apple Watch Ultra 3 and a Polar H10 chest strap, converging after about 15 minutes; a HIIT session showed the same warm-up lag. BIA measured 9% body fat against 19% on an industrial scale, and 16% on a later reading. The reviewer finds it comfortable all day and overnight but unsuitable for small wrists; routes cannot be created in the app, it does not work with iPhones and battery life trails Garmin.

    TechRadar, Matt Evans, 22 July 2026; 47mm titanium LTE.

    TechRadar — Matt Evans: Samsung Galaxy Watch Ultra 2 review

Owner experiences and issues

  • Battery life is the most praised point in the visible Best Buy reviews: Luis gets about three and a half days and PATRICIAR about five; display brightness, low weight and the slimmer case compared with the first Ultra also come up often. RobertD and Bobby say charging is slow; RobertD adds that some health features need a Samsung phone and the watch is large for small wrists. Luis says the shiny case scratches a little, one review misses a rotating bezel, and Jared186807 found the interface hard at first after switching from an iPhone.

    Best Buy US, SM-L715UZKAXAA (SKU 6684220); 20 visible of 157 reviews, 18 verified and incentivised; ownership 1 week to 1 month.

    Best Buy: Galaxy Watch Ultra2 47mm LTE Titanium Gray (SM-L715UZKAXAA) customer reviews
  • Coolblue shows 7 ratings and 3 written reviews. Marco praises the bright display, consistent readings and Galaxy phone integration but says the included strap does not fit wide wrists. Jenny likes the 5,000-nit display, good battery life for a smartwatch and smooth operation; Jan praises the features and design but finds it expensive.

    Coolblue Germany, SM-L715FZSAEUB (Titanium Silver); 3 written reviews, no verification label visible in the accessed text.

    Coolblue Germany: Galaxy Watch Ultra2 LTE 47mm (SM-L715FZSAEUB) customer reviews

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Sources

  1. Samsung Australia: Galaxy Watch Ultra2 Titanium Silver (SM-L715FZSAXSA) specifications
  2. Samsung Newsroom Turkey: Galaxy Z Fold8 Ultra, Fold8, Flip8, Watch Ultra2 and Watch9 go on sale
  3. TechRadar — Matt Evans: Samsung Galaxy Watch Ultra 2 review
  4. Best Buy: Galaxy Watch Ultra2 47mm LTE Titanium Gray (SM-L715UZKAXAA) customer reviews
  5. Coolblue Germany: Galaxy Watch Ultra2 LTE 47mm (SM-L715FZSAEUB) customer reviews