Garmin Venu 4 (45 mm) / Samsung Galaxy Watch Ultra (47 mm, 2024)

Garmin Venu 4 (45 mm): 010-03014-00 · Slate case / black silicone band

Samsung Galaxy Watch Ultra (47 mm, 2024): Galaxy Watch Ultra 47 mm (SM-L705, LTE); Titanium Gray, Titanium White and Titanium Silver at launch. The Galaxy Watch Ultra (2025), sold with a Titanium Blue option, is a later release of the same design whose specifications are not applied to this record; the Galaxy Watch Ultra2 and Galaxy Watch7 are separate models.

SpecificationGarmin Venu 4 (45 mm)Samsung Galaxy Watch Ultra (47 mm, 2024)
Release year20252024
LaunchAnnounced 17 September 2025; sales began 22 September 2025 Garmin—
Display1.4-inch AMOLED; 454 × 454; touch, optional always-on mode Garmin1.5-inch (37.3 mm) 480 × 480 Super AMOLED; full-colour Always On Display; Sapphire Crystal

Samsung quotes 3,000 nits peak brightness for readability in sunlight. Night Mode faces switch to red tones in the dark.

Samsung
Cover glassCorning Gorilla Glass 3 Garmin—
Case and bandStainless steel / fibre-reinforced polymer; 22 mm quick-release band Garmin—
Weight38 g case; 56 g with silicone band Garmin—
Storage8 GB; music storage Garmin—
PositioningMulti-GNSS, multi-band GPS and SatIQ automatic selection Garmin—
BatteryUp to 12 days in smartwatch mode; 20 hours GPS-only; 17 hours multi-band Garmin—
Always-on displayUp to 4 days, according to Garmin Garmin—
Water resistance5 ATM; suitable for swimming Garmin—
Connectivity and callsBluetooth, ANT+, Wi-Fi; speaker / microphone, paired compatible phone required for calls Garmin—
Health and trainingHeart rate, HRV, sleep, skin temperature; training readiness and recovery tracking Garmin—
Software 18.32Includes fixes for resets when changing screens during activities and Spotify playback after skipping tracks with Bluetooth headphones Garmin—
Case—47.1 × 47.4 × 12.1 mm; 60.5 g; Titanium Grade 4 frame

According to Samsung, Grade 4 titanium is used only on the front and back cover areas of the metal frame; the rest of the frame is a mix of plastic and Grade 2 titanium.

Samsung
Processor—Exynos W1000 (5 core, 3 nm) Samsung
Memory and storage—2 GB memory + 32 GB storage

This figure is for the 2024 launch model; the Galaxy Watch Ultra (2025) version may differ.

Samsung
Battery and charging—590 mAh (typical); up to 100 hours in Power Saving and 48 hours in Exercise Power Saving; WPC-based fast wireless charging

In Exercise Power Saving some features, such as network and Bluetooth connections, may be unavailable. Durations come from Samsung’s internal lab tests.

Samsung
Operating system—Wear OS 5 (Powered by Samsung) with One UI 6 Watch at launch; One UI 8 Watch update released in July 2025

The One UI 8 Watch update brought Watch8 features such as Running Coach, Vascular Load and Antioxidant Index.

Samsung
Sensors—Samsung BioActive Sensor (Optical Bio-signal sensor + Electrical Heart Signal + Bioelectrical Impedance Analysis), temperature, accelerometer, barometer, gyro, geomagnetic, light sensor

Health features are for general wellness, not diagnosis; some measurements depend on the market and the paired phone.

Samsung
Connectivity—LTE, Bluetooth 5.3, Wi‑Fi 2.4+5 GHz, NFC, GPS (L1+L5) / Glonass / Beidou / Galileo

L1+L5 dual-frequency GPS uses two satellite signals to improve location accuracy among tall buildings and trees.

Samsung
Durability—10ATM + IP68, MIL-STD-810H; ocean swimming; operation from −20 to 55 °C; altitude from 500 m below sea level to 9,000 m

10ATM means 10 minutes at 100 metres under ISO 22810; Samsung says the watch is not suitable for high-pressure water or scuba diving. IP68 covers 1.5 metres of fresh water for 30 minutes.

Samsung
Buttons and safety—Two buttons + orange Quick Button; Emergency Siren

The Quick Button can be mapped to start and control workouts; holding it sounds the emergency siren.

Samsung
Phone compatibility—Android 11 or higher with more than 1.5 GB of memory Samsung