Moto Watch Ultra vs OnePlus Watch 4 specs comparison
OnePlus Watch 4 is the stronger hardware package overall, especially for battery life, materials and health sensors. Moto Watch Ultra fights back with LTE support and a lower price, which makes it the better fit if standalone connectivity matters more than maximum endurance.
At a glance
What's different?
The strongest database-backed differences, without pretending every different number is an advantage.
Moto Watch Ultra
- Phone compatibility Android; Qira features require compatible Motorola/Lenovo devices
- Cellular connectivity Not available on the other model
OnePlus Watch 4
- Phone compatibility Android 9.0+ with GMS 23.45.23+; no iOS or Android Go support
- Much longer battery life 5 days vs 2 days
- 11.1% brighter display Up to 3,000 nits vs Up to 2,700 nits
- ECG Not available on the other model
- 15.7% lighter 43 g vs 51 g
Both include blood oxygen tracking, HRV tracking, on-board music, Bluetooth calling, a microphone, a speaker.
Full comparison
The full record
71 specifications across 6 areas, with 33 genuine differences.
1. Design & display OnePlus Watch 4
Fact
Moto Watch Ultra
OnePlus Watch 4
Release date
2026-09-03
2026-04-28
Physical size
46.3 x 46.3 x 12.1 mm
47.4 x 47.4 x 11.0 mm
Weight
51 g
43 g without strap; 68 g with strap
Material
Stainless steel body; standard 22 mm band compatibility
Titanium alloy case, PA with fiberglass bottom case, sapphire crystal, fluororubber strap
Water resistance
5 ATM; IP68
5 ATM; IP68; IP69; MIL-STD-810H
Color options
Silver / gunmetal case finishes; PANTONE Black Beauty, Mountain View and Nuthatch band options
Midnight Titanium, Evergreen Titanium
Display type
pOLED, always-on display, 1-60 Hz variable refresh rate
LTPO OLED
Display size
1.50 inch
1.5 inch
Display resolution
466 x 466 pixels
466 x 466 pixels, 310 ppi
Display brightness
Up to 2,700 nits
Up to 3,000 nits
Display protection
Corning Gorilla Glass 3
Sapphire crystal
2. Battery & charging OnePlus Watch 4
Fact
Moto Watch Ultra
OnePlus Watch 4
Battery
Rechargeable battery; 550 mAh
Rechargeable battery; 646 mAh typical (632 mAh rated)
Battery life
Up to 2 days of active use with always-on display off
Up to 5 days smart mode, 3 days heavy use, 16 days power saver
Charging
Magnetic charging dock with USB-C
Charging base with USB-C cable
Charging time
15 minutes provides up to 24 hours of active use
About 75 minutes maximum
3. Sensors & positioning OnePlus Watch 4
Fact
Moto Watch Ultra
OnePlus Watch 4
GNSS type
Built-in dual-band GPS
Built-in dual-band GNSS
GPS
Yes (built-in dual-band GPS)
Yes
Accelerometer
Yes
Yes
Gyroscope
Yes
Yes
Barometric altimeter
Yes
Yes
Compass
Yes
Yes
Geomagnetic
No
Yes
Ambient light sensor
Yes
Yes
Optical heart rate
Yes
Yes
Electrical heart rate
No
Yes
SpO2
Yes
Yes
Temperature
No
Yes
Galvanic skin response
No
No
Microphone
Yes
Yes
Speakers
Yes
Yes
Vibration motor
Yes
Yes
4. Health & activity OnePlus Watch 4
Fact
Moto Watch Ultra
OnePlus Watch 4
Steps
Yes
Yes
Distance
Yes
Yes
Calories burned
Yes (Polar Smart Calories and Energy Sources)
Yes
Floors
Yes
Yes
Sports tracking
Yes (Polar-powered activity tracking and Running Coach)
Yes (100+ sports modes)
Sleep
Yes (Polar Sleep Plus Stages)
Yes
Heart rate
Yes
Yes
HRV
Yes
Yes
Stress
Yes (Polar Serene breathing and stress-management features)
Yes
Blood oxygen
Yes
Yes
Respiration rate
Yes
Yes
Skin temperature
No
Yes
ECG
No
Yes (regional availability)
Blood pressure
No
No
Body composition
No
No
Glucose
No
No
Hydration level
No
No
UV exposure
No
No
Calorie intake
No
No
Hyperglycemia risk assessment
No
No
Arterial stiffness detection
No
Yes
Pulse wave arrhythmia analysis
No
No
5. Smart features No clear edge
Fact
Moto Watch Ultra
OnePlus Watch 4
Smartphone compatibility
Android; Qira features require compatible Motorola/Lenovo devices
Android 9.0+ with GMS 23.45.23+; no iOS or Android Go support
Operating system at launch
Wear OS 6 by Google; 2 OS upgrades promised
OxygenOS Watch 8 + Wear OS 6
Processor
Qualcomm Snapdragon W5+ Gen 1
Qualcomm Snapdragon W5 + BES2800
RAM
2 GB
2 GB
Storage
32 GB
32 GB
Bluetooth
Yes (5.3)
Yes (5.2)
Wi-Fi
Yes
Yes (2.4/5 GHz)
NFC / connected pay
Yes (Google Wallet / Google Pay)
Yes (Google Wallet)
Cellular
Yes (LTE via eSIM)
No
Smartphone notifications
Yes
Yes
Bluetooth calling
Yes; standalone LTE calling also supported
Yes
Smartphone music control
Yes
Yes
On-board music storage
Yes (via supported Wear OS apps)
Yes
Voice assistant
Google Gemini; Motorola Qira on compatible Motorola/Lenovo devices
Gemini / Google Assistant
6. Navigation & safety No clear edge
Fact
Moto Watch Ultra
OnePlus Watch 4
Maps
Yes (Google Maps)
Yes (Google Maps)
Navigation
Yes (Google Maps with built-in dual-band GPS)
Yes (Google Maps)
Satellite SOS
No
No
Diving
No
No