Screen size
Watch D1.6"
Watch Fit 4Winner: 1.8"+9.9%
Quick verdict
Watch Fit 4 leads the measured specs 8-3.
Measured wins
Watch D
3
spec wins
Ties
4
equal specs
Watch Fit 4
8
spec wins
Overall winner
Screen size
Technology
Watch D
No cellular connectivity
Watch Fit 4
No cellular connectivity
2G bands
Watch D
N/A
Watch Fit 4
N/A
3G bands
Watch D
N/A
Watch Fit 4
N/A
4G bands
Watch D
N/A
Watch Fit 4
Resolution
Refresh rate
Peak brightness
Pixel density
CPU speed
RAM
Storage
Main camera
Front camera
Battery
Wired charging
Weight
Thickness
IP rating
Wi‑Fi
Bluetooth
USB
5G support
equal specsNFC
equal specs3.5mm jack
equal specsSD card
equal specsStereo speakers
N/A
Speed
Watch D
No
Watch Fit 4
No
GPRS
Watch D
No
Watch Fit 4
No
EDGE
Watch D
No
Watch Fit 4
No
Announced
Watch D
2022, May 18
Watch Fit 4
2025, May 15
Status
Watch D
Available. Released 2022, October 12
Watch Fit 4
Available. Released 2025, May 26
Dimensions
Watch D
51 x 38 x 13.6 mm (2.01 x 1.50 x 0.54 in)
Watch Fit 4
43 x 38 x 9.5 mm (1.69 x 1.50 x 0.37 in)
Weight
Watch D
40.9 g (1.45 oz)
Watch Fit 4
27 g (0.95 oz)
Build
Watch D
Glass front, aluminum frame
Watch Fit 4
Glass front, aluminum alloy frame, plastic back
SIM
Watch D
No
Watch Fit 4
No
Other
Watch D
IP68 dust tight and water resistant Blood Pressure Measurement & ECG with built-in pump & inflatable strap Pressure measurement accuracy of ±3 mmHg
Watch Fit 4
5 ATM water resistant
Type
Watch D
AMOLED
Watch Fit 4
AMOLED, 2000 nits (peak)
Size
Watch D
1.64 inches
Watch Fit 4
1.82 inches
Resolution
Watch D
456 x 280 pixels (~326 ppi density)
Watch Fit 4
480 x 408 pixels (~347 ppi density)
OS
Watch D
HarmonyOS 2.1
Watch Fit 4
-
Card slot
Watch D
No
Watch Fit 4
No
Internal
Watch D
4GB
Watch Fit 4
Unspecified
Phonebook
Watch D
-
Watch Fit 4
No
Call records
Watch D
-
Watch Fit 4
No
Other
Watch D
No
Watch Fit 4
No
Loudspeaker
Watch D
No
Watch Fit 4
Yes
3.5mm jack
Watch D
No
Watch Fit 4
No
WLAN
Watch D
No
Watch Fit 4
No
Bluetooth
Watch D
5.1, LE
Watch Fit 4
5.2, LE
Positioning
Watch D
GPS
Watch Fit 4
GPS (L1+L5), GALILEO (E1+E5a), QZSS (L1+L5), BDS (B1l+B1C), GLONASS
NFC
Watch D
Yes (market/region dependent)
Watch Fit 4
Yes (gray model only)
Radio
Watch D
No
Watch Fit 4
No
USB
Watch D
No
Watch Fit 4
No
Sensors
Watch D
Accelerometer, gyro, heart rate, SpO2, thermometer (skin temperature), differential pressure sensor
Watch Fit 4
Accelerometer, gyro, heart rate, SpO2, compass, barometer
Messaging
Watch D
-
Watch Fit 4
Email, IM
Games
Watch D
-
Watch Fit 4
No
Java
Watch D
-
Watch Fit 4
No
Other
Watch D
-
Watch Fit 4
Pulse wave arrhythmia analysis
Type
Watch D
Li-Ion 451 mAh
Watch Fit 4
Li-Ion 400 mAh
Charging
Watch D
3.5W wireless
Watch Fit 4
5W wireless
Colors
Watch D
Graphite Black
Watch Fit 4
Black, Silver
Models
Watch D
MLY-B10, MLY-B11, MLY-B19
Watch Fit 4
SYA-B19
Price
Watch D
About 350 EUR
Watch Fit 4
$ 121.00 / € 104.76