Screen size
U1211.8"
Watch Fit 4Winner: 1.8"+1.1%
Quick verdict
Watch Fit 4 leads the measured specs 10-4.
Measured wins
U121
4
spec wins
Ties
1
equal specs
Watch Fit 4
10
spec wins
Overall winner
Screen size
Technology
U121
GSM / UMTS
Watch Fit 4
No cellular connectivity
2G bands
U121
GSM 900 / 1800 / 1900
Watch Fit 4
N/A
3G bands
U121
UMTS 2100
Watch Fit 4
N/A
Speed
U121
Yes, 384 kbps
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
3.5mm jack
SD card
Stereo speakers
No
4G bands
U121
-
Watch Fit 4
N/A
GPRS
U121
-
Watch Fit 4
No
EDGE
U121
-
Watch Fit 4
No
Announced
U121
2007, Q2
Watch Fit 4
2025, May 15
Status
U121
Discontinued
Watch Fit 4
Available. Released 2025, May 26
Dimensions
U121
103 x 45 x 14.5 mm, 66 cc (4.06 x 1.77 x 0.57 in)
Watch Fit 4
43 x 38 x 9.5 mm (1.69 x 1.50 x 0.37 in)
Weight
U121
90 g (3.17 oz)
Watch Fit 4
27 g (0.95 oz)
SIM
U121
Mini-SIM
Watch Fit 4
No
Build
U121
-
Watch Fit 4
Glass front, aluminum alloy frame, plastic back
Other
U121
-
Watch Fit 4
5 ATM water resistant
Type
U121
TFT, 256K colors
Watch Fit 4
AMOLED, 2000 nits (peak)
Size
U121
1.8 inches, 10.2 cm2 (~22.0% screen-to-body ratio)
Watch Fit 4
1.82 inches
Resolution
U121
176 x 220 pixels (~157 ppi density)
Watch Fit 4
480 x 408 pixels (~347 ppi density)
Card slot
U121
microSD (dedicated slot)
Watch Fit 4
No
Phonebook
U121
1000 entries
Watch Fit 4
No
Call records
U121
20 dialed, 20 received, 20 missed calls
Watch Fit 4
No
Internal
U121
-
Watch Fit 4
Unspecified
Single
U121
1.3 MP
Watch Fit 4
-
Video
U121
Yes
Watch Fit 4
-
Single
U121
VGA videocall camera
Watch Fit 4
-
Video
U121
Watch Fit 4
-
Loudspeaker
U121
Yes
Watch Fit 4
Yes
3.5mm jack
U121
Yes
Watch Fit 4
No
WLAN
U121
No
Watch Fit 4
No
Bluetooth
U121
1.1
Watch Fit 4
5.2, LE
Positioning
U121
No
Watch Fit 4
GPS (L1+L5), GALILEO (E1+E5a), QZSS (L1+L5), BDS (B1l+B1C), GLONASS
Radio
U121
FM radio
Watch Fit 4
No
USB
U121
2.0
Watch Fit 4
No
NFC
U121
-
Watch Fit 4
Yes (gray model only)
Sensors
U121
Watch Fit 4
Accelerometer, gyro, heart rate, SpO2, compass, barometer
Messaging
U121
SMS, MMS, Email
Watch Fit 4
Email, IM
Browser
U121
WAP 2.0/xHTML, RSS read
Watch Fit 4
-
Games
U121
Yes
Watch Fit 4
No
Java
U121
No
Watch Fit 4
No
Other
U121
MP3/MP4/AAC/3GP player Predictive text input Organizer Photo editor MS Word viewer Video streaming
Watch Fit 4
Pulse wave arrhythmia analysis
Type
U121
Removable Li-Ion battery
Watch Fit 4
Li-Ion 400 mAh
Stand-by
U121
Up to 300 h
Watch Fit 4
-
Charging
U121
-
Watch Fit 4
5W wireless
Colors
U121
Grey
Watch Fit 4
Black, Silver
Models
U121
-
Watch Fit 4
SYA-B19
Price
U121
-
Watch Fit 4
$ 121.00 / € 104.76
Other
U121
-
Watch Fit 4
No