Screen size
U8300Winner: 2.6"+30%
Watch Fit 41.8"
Quick verdict
Watch Fit 4 leads the measured specs 8-6.
Measured wins
U8300
6
spec wins
Ties
1
equal specs
Watch Fit 4
8
spec wins
Overall winner
Screen size
Technology
U8300
GSM / HSPA
Watch Fit 4
No cellular connectivity
2G bands
U8300
GSM 850 / 900 / 1800 / 1900
Watch Fit 4
N/A
3G bands
U8300
HSDPA 900 / 2100
Watch Fit 4
N/A
Speed
U8300
HSPA 7.2/0.384 Mbps
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
U8300
-
Watch Fit 4
N/A
GPRS
U8300
-
Watch Fit 4
No
EDGE
U8300
-
Watch Fit 4
No
Announced
U8300
2010, February. Released 2010, July
Watch Fit 4
2025, May 15
Status
U8300
Discontinued
Watch Fit 4
Available. Released 2025, May 26
Dimensions
U8300
94 x 64 x 11 mm (3.70 x 2.52 x 0.43 in)
Watch Fit 4
43 x 38 x 9.5 mm (1.69 x 1.50 x 0.37 in)
Weight
U8300
104 g (3.67 oz)
Watch Fit 4
27 g (0.95 oz)
Keyboard
U8300
QWERTY
Watch Fit 4
-
SIM
U8300
Mini-SIM
Watch Fit 4
No
Build
U8300
-
Watch Fit 4
Glass front, aluminum alloy frame, plastic back
Other
U8300
-
Watch Fit 4
5 ATM water resistant
Type
U8300
TFT, 256K colors
Watch Fit 4
AMOLED, 2000 nits (peak)
Size
U8300
2.6 inches, 20.9 cm2 (~34.8% screen-to-body ratio)
Watch Fit 4
1.82 inches
Resolution
U8300
320 x 240 pixels, 4:3 ratio (~154 ppi density)
Watch Fit 4
480 x 408 pixels (~347 ppi density)
Other
U8300
Watch Fit 4
-
OS
U8300
Android 2.1 (Eclair)
Watch Fit 4
-
Card slot
U8300
microSDHC (dedicated slot)
Watch Fit 4
No
Phonebook
U8300
-
Watch Fit 4
No
Call records
U8300
-
Watch Fit 4
No
Internal
U8300
-
Watch Fit 4
Unspecified
Single
U8300
3.15 MP
Watch Fit 4
-
Features
U8300
LED flash
Watch Fit 4
-
Video
U8300
Yes
Watch Fit 4
-
Other
U8300
No
Watch Fit 4
-
Loudspeaker
U8300
Yes
Watch Fit 4
Yes
3.5mm jack
U8300
Yes
Watch Fit 4
No
WLAN
U8300
Wi-Fi 802.11 b/g
Watch Fit 4
No
Bluetooth
U8300
2.1, A2DP
Watch Fit 4
5.2, LE
Positioning
U8300
GPS, A-GPS
Watch Fit 4
GPS (L1+L5), GALILEO (E1+E5a), QZSS (L1+L5), BDS (B1l+B1C), GLONASS
Radio
U8300
FM radio
Watch Fit 4
No
USB
U8300
microUSB 2.0
Watch Fit 4
No
NFC
U8300
-
Watch Fit 4
Yes (gray model only)
Sensors
U8300
Accelerometer, proximity, compass
Watch Fit 4
Accelerometer, gyro, heart rate, SpO2, compass, barometer
Browser
U8300
HTML
Watch Fit 4
-
Other
U8300
MP3/WAV/WMA/eAAC+ player MP4/WMV/H.264 player Document viewer Voice memo
Watch Fit 4
Pulse wave arrhythmia analysis
Messaging
U8300
-
Watch Fit 4
Email, IM
Games
U8300
-
Watch Fit 4
No
Java
U8300
-
Watch Fit 4
No
Type
U8300
Removable Li-Ion 930 mAh battery
Watch Fit 4
Li-Ion 400 mAh
Stand-by
U8300
Up to 450 h
Watch Fit 4
-
Talk time
U8300
Up to 5 h
Watch Fit 4
-
Charging
U8300
-
Watch Fit 4
5W wireless
Colors
U8300
Green, Yellow and Purple
Watch Fit 4
Black, Silver
Price
U8300
About 70 EUR
Watch Fit 4
$ 121.00 / € 104.76
Models
U8300
-
Watch Fit 4
SYA-B19
Other
U8300
-
Watch Fit 4
No