Screen size
U8150 IDEOSWinner: 2.8"+35%
Watch Fit 41.8"
Quick verdict
Watch Fit 4 leads the measured specs 8-6.
Measured wins
U8150 IDEOS
6
spec wins
Ties
1
equal specs
Watch Fit 4
8
spec wins
Overall winner
Screen size
Technology
U8150 IDEOS
GSM / HSPA
Watch Fit 4
No cellular connectivity
2G bands
U8150 IDEOS
GSM 850 / 900 / 1800 / 1900
Watch Fit 4
N/A
3G bands
U8150 IDEOS
HSDPA 900 / 2100 / AWS, HSDPA 850 / 1900 / 2100 / 1700
Watch Fit 4
N/A
Speed
U8150 IDEOS
HSPA 7.2/0.384 Mbps
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
Watch Fit 4
No
4G bands
U8150 IDEOS
-
Watch Fit 4
N/A
GPRS
U8150 IDEOS
-
Watch Fit 4
No
EDGE
U8150 IDEOS
-
Watch Fit 4
No
Announced
U8150 IDEOS
2010, September. Released 2010, September
Watch Fit 4
2025, May 15
Status
U8150 IDEOS
Discontinued
Watch Fit 4
Available. Released 2025, May 26
Dimensions
U8150 IDEOS
104 x 54.8 x 13.5 mm (4.09 x 2.16 x 0.53 in)
Watch Fit 4
43 x 38 x 9.5 mm (1.69 x 1.50 x 0.37 in)
Weight
U8150 IDEOS
102.1 g (3.60 oz)
Watch Fit 4
27 g (0.95 oz)
SIM
U8150 IDEOS
Mini-SIM
Watch Fit 4
No
Build
U8150 IDEOS
-
Watch Fit 4
Glass front, aluminum alloy frame, plastic back
Other
U8150 IDEOS
-
Watch Fit 4
5 ATM water resistant
Type
U8150 IDEOS
TFT, 256K colors
Watch Fit 4
AMOLED, 2000 nits (peak)
Size
U8150 IDEOS
2.8 inches, 24.3 cm2 (~42.6% screen-to-body ratio)
Watch Fit 4
1.82 inches
Resolution
U8150 IDEOS
240 x 320 pixels, 4:3 ratio (~143 ppi density)
Watch Fit 4
480 x 408 pixels (~347 ppi density)
OS
U8150 IDEOS
Android 2.2 (Froyo)
Watch Fit 4
-
Chipset
U8150 IDEOS
Qualcomm MSM7225 Snapdragon S1
Watch Fit 4
-
CPU
U8150 IDEOS
528 MHz ARM 11
Watch Fit 4
-
GPU
U8150 IDEOS
No
Watch Fit 4
-
Card slot
U8150 IDEOS
microSDHC (dedicated slot)
Watch Fit 4
No
Internal
U8150 IDEOS
512MB 256MB RAM
Watch Fit 4
Unspecified
Phonebook
U8150 IDEOS
-
Watch Fit 4
No
Call records
U8150 IDEOS
-
Watch Fit 4
No
Single
U8150 IDEOS
3.15 MP
Watch Fit 4
-
Video
U8150 IDEOS
CIF
Watch Fit 4
-
Other
U8150 IDEOS
No
Watch Fit 4
-
Loudspeaker
U8150 IDEOS
Yes
Watch Fit 4
Yes
3.5mm jack
U8150 IDEOS
Yes
Watch Fit 4
No
WLAN
U8150 IDEOS
Wi-Fi 802.11 b/g/n
Watch Fit 4
No
Bluetooth
U8150 IDEOS
2.1, A2DP
Watch Fit 4
5.2, LE
Positioning
U8150 IDEOS
GPS, A-GPS
Watch Fit 4
GPS (L1+L5), GALILEO (E1+E5a), QZSS (L1+L5), BDS (B1l+B1C), GLONASS
Radio
U8150 IDEOS
Stereo FM radio, RDS
Watch Fit 4
No
USB
U8150 IDEOS
microUSB 2.0
Watch Fit 4
No
NFC
U8150 IDEOS
-
Watch Fit 4
Yes (gray model only)
Sensors
U8150 IDEOS
Accelerometer, proximity, compass
Watch Fit 4
Accelerometer, gyro, heart rate, SpO2, compass, barometer
Browser
U8150 IDEOS
HTML, Adobe Flash
Watch Fit 4
-
Other
U8150 IDEOS
MP3/WMA/eAAC+ player MP4/H.264 player Organizer Photo viewer/editor Voice memo/dial/commands Predictive text input (Swype)
Watch Fit 4
Pulse wave arrhythmia analysis
Messaging
U8150 IDEOS
-
Watch Fit 4
Email, IM
Games
U8150 IDEOS
-
Watch Fit 4
No
Java
U8150 IDEOS
-
Watch Fit 4
No
Type
U8150 IDEOS
Removable Li-Ion 1200 mAh battery
Watch Fit 4
Li-Ion 400 mAh
Stand-by
U8150 IDEOS
Up to 220 h (2G) / Up to 300 h (3G)
Watch Fit 4
-
Talk time
U8150 IDEOS
Up to 4 h (2G) / Up to 5 h (3G)
Watch Fit 4
-
Charging
U8150 IDEOS
-
Watch Fit 4
5W wireless
Colors
U8150 IDEOS
Black body / blue, red, yellow backpanels
Watch Fit 4
Black, Silver
Price
U8150 IDEOS
About 60 EUR
Watch Fit 4
$ 121.00 / € 104.76
Models
U8150 IDEOS
-
Watch Fit 4
SYA-B19
Other
U8150 IDEOS
-
Watch Fit 4
No