Samsung Galaxy Watch4 vs. Apple Watch Ultra 2

Smartwatch Comparison, Reviews and Tests

In depth comparison and review of Samsung Galaxy Watch4 and Apple Watch Ultra 2. Compare sizes, functions, displays, batteries and other important specifications and features to easily choose the right smartwatch for you. Our goal is to help you uncover differences between the products and find the watch that will best fit your needs.

Smartwatch Specifications Comparison

Samsung Galaxy Watch4 vs. Apple Watch Ultra 2 Comparison Chart
GENERAL Samsung Galaxy Watch4 Apple Watch Ultra 2
Product Type Smart watch Smart watch
Operating System Wear OS by Samsung WatchOS 10
Supported Host Device OS Android 6.0 (Marshmallow) or later iOS 17 or later
Activity/Sport - Multisport, custom workouts
Wearing Style Watch style Watch style
Audio Input - Three-microphone array
Audio Output - Dual speakers
Width 39.3 mm -
Height 40.4 mm -
Depth 9.7 mm -
Weight 25.9 g -
Body Details - Case only: 61.4 g
Body Material Aluminium Aerospace-grade titanium
Protection Waterproof Water-resistant, splash-resistant, corrosion resistant, dust-resistant
Clock Display Yes Yes
FEATURES Samsung Galaxy Watch4 Apple Watch Ultra 2
Sensors Accelerometer, ambient light sensor, barometer, gyro sensor, bioimpedance sensor, electromagnetic compass, optical heart sensor, electrical heart sensor Accelerometer, ambient light sensor, digital compass, depth gauge, electrical heart sensor, ECG sensor, blood oxygen sensor, gyroscope, water temperature sensor, temperature sensing, optical heart sensor (3d gen), always-on altimeter
Tracking Data Distance, calories burned, activity, sleep activity, heart rate, steps taken, blood oxygen saturation, body composition, ECG, REM phases Distance, time, calories burned, activity, sleep activity, heart rate, blood oxygen saturation, sleep stages, menstrual cycle, ECG, ovulation phase, rapid eye movement (REM), depth
Modes - Night mode
Goal Setting Yes Yes
Features Find phone function, VO2 max, automatic exercise recognition, personalised coaching Call handling, store & play music, Fall detection, Emergency SOS, heart rate zones, Family Setup support, International Emergency Calling, Siren (86-decibel), Crash Detection, noise monitoring, Compass Waypoint, precision finding for iPhone, brightness: 3000 nits, flashlight boost, track detection
Notifications Calendar, SMS, social apps, incoming calls Calendar, SMS, Email, high and low heart rate, irregular rhythm, cardio fitness
Vibrating Alert Yes Yes
Feedback Type Vibration alert, visual interface Audio alert, vibration alert, visual interface
Digital Player MP3, WAV, AAC, AMR, M4A, OGG, 3GA, AWB, OGA -
Navigation (GPS) GPS/GLONASS/Galileo/BeiDou receiver GPS/GLONASS/Galileo/BeiDou/QZSS receiver
Payment Technology - Apple Pay
Internet of Things (IoT) Compatible - Yes
IoT Intelligent Assistant - Siri
IoT Voice Controlled - Direct
CELLULAR Samsung Galaxy Watch4 Apple Watch Ultra 2
Technology WCDMA (UMTS) WCDMA (UMTS)
Mobile Broadband Generation 4G 4G
SIM Card Type Electronic SIM card (e-SIM) Electronic SIM card (e-SIM)
CONNECTIVITY Samsung Galaxy Watch4 Apple Watch Ultra 2
3M UMTS Band - Band 1, Band 2, Band 5, Band 10
4G LTE Band - Band 1, Band 2, Band 3, Band 4, Band 5, Band 6, Band 7, Band 8, Band 18, Band 19, Band 20, Band 25, Band 26, Band 28, Band 39, Band 40, Band 41, Band 66
Wireless Interface NFC, IEEE 802.11a/b/g/n, Bluetooth 5.0 IEEE 802.11b/g/n, LTE, Ultra-Wideband (UWB), Bluetooth 5.3
Bluetooth Profiles Hands-Free Profile (HFP), Headset Profile (HSP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) -
DISPLAY Samsung Galaxy Watch4 Apple Watch Ultra 2
Type Super AMOLED - colour Retina LTPO OLED - colour
Resolution 396 x 396 pixels 410 x 502 pixels
Screen Size 1.19" -
Aspect Ratio Full circle -
Pixel Density 330 ppi -
Colour Depth 24-bit (16.7 million colours) -
Screen Protection Corning Gorilla Glass DX+ (scratch resistant glass) Flat sapphire front crystal with display edge protection
Always On Display (AOD) Yes Yes
INPUT DEVICE Samsung Galaxy Watch4 Apple Watch Ultra 2
Type Touch sensitive screen, push buttons Touch sensitive screen, customisable action button, side button, double tap gesture
CASE Samsung Galaxy Watch4 Apple Watch Ultra 2
Case Size 40 mm 49 mm
Case Shape Round Rectangular
Case Details Pink gold | Black | Silver Titanium
Crown Type - Digital with haptic feedback
BAND Samsung Galaxy Watch4 Apple Watch Ultra 2
Band Type Sport band Alpine Loop
Band Size - S
Fits Wrist with Circumference - 130-160 mm
Changeable Yes Yes
Clasp Type Buckle G-hook
Band Material - Textile
Band Colour Pink | Black | White Blue | Indigo | Olive | Orange/beige | Green/gray | Blue/black | Orange | White
STORAGE Samsung Galaxy Watch4 Apple Watch Ultra 2
Storage Capacity 16 GB 64 GB
User Memory 7.6 GB -
RAM Samsung Galaxy Watch4 Apple Watch Ultra 2
RAM Size 1.5 GB -
CPU Samsung Galaxy Watch4 Apple Watch Ultra 2
Manufacturer Samsung Apple
CPU Type Exynos W920 S9 SiP
Clock Speed 1.18 GHz -
Features - W3 Apple wireless chip, second-generation Ultra Wideband chip, 4-core Neural Engine
BATTERY Samsung Galaxy Watch4 Apple Watch Ultra 2
Technology - Lithium Ion
Capacity 247 mAh -
Battery Life 40 hours 36 hours
Battery Life Details - Normal use - up to 36 hour(s)
Low power mode - up to 18 hour(s)
Power saving mode - up to 72 hour(s)
Rechargeable Battery Yes Yes
Wireless Charging Yes Yes
Wireless Charging Standards WPC, Wireless PowerShare -
MISCELLANEOUS Samsung Galaxy Watch4 Apple Watch Ultra 2
Included Accessories Wireless charging dock Magnetic fast charger to USB-C cable (1 m)
Preloaded Software - GymKit, Oceanic+, Depth app
Compliant Standards MIL-STD 810G, IP68 IP6X, BFR-free, PVC-free, Beryllium-free, Mercury-free, MIL-STD-810H, EN13319, Arsenic-free
SAR Value 0.729 W/kg (head), 2.594 W/kg (limb) -
Specific Absorption Rate (SAR) - 0.22 W/kg (head)
0.43 W/kg (limb)
Carbon Footprint - 0 kg carbon emissions
Max Depth of Water Resistance 50 m 100 m
Max Operating Temperature - 55 °C
Min Operating Temperature - -20 °C
Manufacturer Model Number SM-R865F A2986
Warranty 2-year warranty -
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