Huawei Watch D3 vs Apple Watch Ultra 4 specs comparison

These target very different buyers. Pick the Watch D3 if you specifically want serious blood pressure tracking and ambulatory monitoring; choose the Ultra 4 for sports, GPS, outdoor use and much stronger smartwatch functionality.

Full comparison

The full record

80 specifications across 7 areas, with 36 genuine differences.

1. Design & display 9 differences · advantages split between the two Mixed
Fact
Huawei Watch D3
Apple Watch Ultra 4
Release date
2026-09-02
2026-09-18
Physical size
46.5 x 41 x 11.3 mm
49 x 44 x 12 mm
Weight
40 g without strap
63.0 g (Natural), 63.1 g (Black)
Material
Aluminum alloy case
Grade 5 titanium case
Water resistance
IP68; not designed for swimming, snorkeling or diving
10 ATM; IP6X; MIL-STD 810H; recreational scuba diving to 40 m
Color options
Mocha Gold, Pale Gold, Black
Natural Titanium, Black Titanium
Display type
AMOLED
Always-On Retina LTPO3 wide-angle OLED
Display size
1.92 inch
49 mm case
Display resolution
408 x 480 pixels, 328 ppi
422 x 514 pixels
Display brightness
Up to 3,000 nits
Up to 3,000 nits
2. Battery & charging 4 differences · Huawei Watch D3 leads on Battery life Huawei Watch D3
Fact
Huawei Watch D3
Apple Watch Ultra 4
Battery
540 mAh rechargeable battery
Rechargeable lithium-ion battery
Battery life
Up to 6 days typical use; up to 1 day with ABPM enabled
Up to 50 hours normal use; up to 84 hours in Low Power Mode; up to 18 hours outdoor workout; up to 25 hours Extended Workout; up to 45 hours Max Extended Workout
Charging
Wireless charging
USB-C magnetic fast charging; up to 80% in about 45 minutes
Charging time
75 minutes
About 45 minutes to 80%; 15 minutes provides up to 18 hours; 5 minutes provides up to 10 hours of sleep tracking
3. Hardware & software 2 differences · no clear overall edge No clear edge
Fact
Huawei Watch D3
Apple Watch Ultra 4
Product status
Current
Current
Case thickness
11.3 mm
12 mm
Battery life - smartwatch mode
Up to 6 days typical use
Up to 50 hours; up to 84 hours in Low Power Mode
4. Sensors & positioning 2 differences · advantages split between the two Mixed
Fact
Huawei Watch D3
Apple Watch Ultra 4
GNSS type
Built-in GNSS
Built-in dual-band GNSS
GPS
Yes
Yes
GALILEO
Yes
Yes
GLONASS
Yes
No
QZSS
Yes
Yes
Beidou
Yes
Yes
Accelerometer
Yes
Yes
Gyroscope
Yes
Yes
Barometric altimeter
Yes
Yes
Compass
Yes
Yes
Ambient light sensor
Yes
Yes
Optical heart rate
Yes
Yes (always-on optical heart sensor; high-frequency background tracking)
Electrical heart rate
Yes
Yes
SpO2
Yes
Yes
Temperature
Yes
Yes
Galvanic skin response
No
No
Microphone
Yes
Yes
Speakers
Yes
Yes
Vibration motor
Yes
Yes
5. Health & activity 3 differences · Huawei Watch D3 leads on Stress, Calorie intake +1 Huawei Watch D3
Fact
Huawei Watch D3
Apple Watch Ultra 4
Steps
Yes
Yes
Distance
Yes
Yes
Calories burned
Yes
Yes
Floors
Yes
Yes
Sports tracking
Yes (100+ workout modes)
Yes
Sleep
Yes
Yes
Heart rate
Yes
Yes
HRV
Yes
Yes (Up to 24x more frequent than Ultra 3)
Stress
Yes
No
Blood oxygen
Yes
Yes
Respiration rate
Yes
Yes
Skin temperature
Yes
Yes
ECG
Yes
Yes
Blood pressure
Yes
Hypertension notifications (no direct blood-pressure measurement)
Body composition
No
No
Glucose
No
No
Hydration level
No
No
UV exposure
No
No
Calorie intake
Yes
No
Arterial stiffness detection
Yes
No
Pulse wave arrhythmia analysis
Yes
Yes
6. Smart features 10 differences · Apple Watch Ultra 4 leads on Wi-Fi, UWB +2 Apple Watch Ultra 4
Fact
Huawei Watch D3
Apple Watch Ultra 4
Smartphone compatibility
Android 8.0+ and iOS 13.0+
iPhone 11 or later or iPhone SE (2nd generation or later) with iOS 27 or later
Operating system at launch
HarmonyOS
watchOS 27
Storage
64 GB
64 GB
Subscription required
No
No
Bluetooth
Yes (6.0)
Yes (5.3)
Wi-Fi
No
Yes (Wi-Fi 4 / 802.11n, 2.4/5 GHz)
NFC / connected pay
Yes
Yes (Apple Pay)
UWB
No
Yes (2nd-generation UWB)
Cellular
No
Yes (5G RedCap and LTE on supported regional models)
Smartphone notifications
Yes
Yes
Bluetooth calling
Yes
Yes (standalone on cellular models; via paired iPhone otherwise)
Smartphone music control
Yes
Yes
On-board music storage
No
Yes
Voice assistant
Yes
Siri AI powered by Apple Intelligence
7. Navigation & safety 6 differences · Apple Watch Ultra 4 leads on Maps, Offline maps +4 Apple Watch Ultra 4
Fact
Huawei Watch D3
Apple Watch Ultra 4
Maps
No
Yes
Offline maps
No
Yes
Navigation
Yes
Yes
Route navigation
Yes
Yes
Emergency SOS
No
Yes
Satellite SOS
No
Yes
Fall detection
No
Yes
LED flashlight
No
No
Diving
No
Yes

Individual specifications

These technical specs are correct to the best of our knowledge at the time of publishing.