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Samsung Galaxy Watch Ultra emerging from a ocean wave, showing its rugged titanium case

Image: Samsung Electronics

Samsung

Galaxy Watch Ultra

Fully verifiedSmartwatchReleased · 2025-07-25Announced 2025-07-09

Specs verified 2026-10-03 · source

Samsung's rugged 47mm titanium smartwatch with a 3000-nit display, 10 ATM + IP68 + MIL-STD-810H durability, and dual-frequency GPS.

Official product page

At a glance

Case sizes47mm case
Chip3nm Processor
Battery590 mAh
Water resistance10 ATM + IP68, MIL-STD-810H tested
SensorsEnergy Score, Sleep Apnea, Bedtime Guidance, High Stress Alert, Running Coach, Personalized Heart Rate Zone, Personalized Functional Threshold Power, AGEs Index, ECG, Irregular Heart Rhythm Notification, Antioxidant Index, Body Composition, Cycle Tracking

Device overview

Chip

Powered by 3nm Processor.

Health & sensors

Health and sensor features: Energy Score, Sleep Apnea, Bedtime Guidance, High Stress Alert, Running Coach, Personalized Heart Rate Zone, Personalized Functional Threshold Power, AGEs Index, ECG, Irregular Heart Rhythm Notification, Antioxidant Index, Body Composition, Cycle Tracking.

Battery

Equipped with a 590 mAh battery rated for Up to 60 hours (Always-On Display on).

Connectivity

Supports Bluetooth + LTE (cellular model).

Case & design

Measures 47mm case, with 10 ATM + IP68, MIL-STD-810H tested water resistance and Titanium Grade 4.

Specifications

Design & Build
Water resistance10 ATM + IP68, MIL-STD-810H tested
ColorsTitanium Blue, Titanium Silver, Titanium Gray, Titanium White
Case dimensions47mm case
Build materialsTitanium Grade 4
Display
Peak brightness3000 nits
Performance
Chipset3nm Processor
Memory & Storage
Storage64 GB
Battery & Charging
Battery capacity590 mAh
Battery lifeUp to 60 hours (Always-On Display on)
Connectivity
Cellular connectivityBluetooth + LTE (cellular model)
PositioningL1+L5 dual-frequency GPS
Software
Phone compatibilityCompatible with Samsung Galaxy phones running Android 12 or later (Watch/Wear OS 4.0)
Security & Sensors
Health sensorsEnergy Score, Sleep Apnea, Bedtime Guidance, High Stress Alert, Running Coach, Personalized Heart Rate Zone, Personalized Functional Threshold Power, AGEs Index, ECG, Irregular Heart Rhythm Notification, Antioxidant Index, Body Composition, Cycle Tracking

Configurations & variants

Regional variants

Global (SM-L705)Primary

Model SM-L705U

Sources & verification

This device is fully verified: every required fact is confirmed from a Tier 1 (manufacturer/official) source.

Tier 1 sources are the manufacturer's own product pages, technical specification sheets, or support documentation. Tier 2 sources are reputable independent technical references, used only for facts that couldn't be confirmed from official documentation. Last verified 2026-10-03.