Screen size
U8150 IDEOSWinner: 2.8"+46%
Watch Buds 21.5"
Quick verdict
U8150 IDEOS leads the measured specs 7-6.
Measured wins
U8150 IDEOS
7
spec wins
Overall winner
Ties
1
equal specs
Watch Buds 2
6
spec wins
Screen size
Technology
U8150 IDEOS
GSM / HSPA
Watch Buds 2
No cellular connectivity
2G bands
U8150 IDEOS
GSM 850 / 900 / 1800 / 1900
Watch Buds 2
N/A
3G bands
U8150 IDEOS
HSDPA 900 / 2100 / AWS, HSDPA 850 / 1900 / 2100 / 1700
Watch Buds 2
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 Buds 2
No
4G bands
U8150 IDEOS
-
Watch Buds 2
N/A
GPRS
U8150 IDEOS
-
Watch Buds 2
No
EDGE
U8150 IDEOS
-
Watch Buds 2
No
Announced
U8150 IDEOS
2010, September. Released 2010, September
Watch Buds 2
2026, April 20
Status
U8150 IDEOS
Discontinued
Watch Buds 2
Available. Released 2026, April 20
Dimensions
U8150 IDEOS
104 x 54.8 x 13.5 mm (4.09 x 2.16 x 0.53 in)
Watch Buds 2
47 x 47 x 14.7 mm (1.85 x 1.85 x 0.58 in)
Weight
U8150 IDEOS
102.1 g (3.60 oz)
Watch Buds 2
54.5 g (1.90 oz)
SIM
U8150 IDEOS
Mini-SIM
Watch Buds 2
No
Build
U8150 IDEOS
-
Watch Buds 2
Titanium alloy frame, glass-fiber reinforced plastic back
Other
U8150 IDEOS
-
Watch Buds 2
Built-in wireless earbuds housed beneath the display; charging from the watch Compatible with standard 22mm straps
Type
U8150 IDEOS
TFT, 256K colors
Watch Buds 2
LTPO AMOLED, 3000 nits (peak)
Size
U8150 IDEOS
2.8 inches, 24.3 cm2 (~42.6% screen-to-body ratio)
Watch Buds 2
1.5 inches
Resolution
U8150 IDEOS
240 x 320 pixels, 4:3 ratio (~143 ppi density)
Watch Buds 2
466 x 466 pixels (~310 ppi density)
OS
U8150 IDEOS
Android 2.2 (Froyo)
Watch Buds 2
HarmonyOS
Chipset
U8150 IDEOS
Qualcomm MSM7225 Snapdragon S1
Watch Buds 2
-
CPU
U8150 IDEOS
528 MHz ARM 11
Watch Buds 2
-
GPU
U8150 IDEOS
No
Watch Buds 2
-
Card slot
U8150 IDEOS
microSDHC (dedicated slot)
Watch Buds 2
No
Internal
U8150 IDEOS
512MB 256MB RAM
Watch Buds 2
-
Single
U8150 IDEOS
3.15 MP
Watch Buds 2
-
Video
U8150 IDEOS
CIF
Watch Buds 2
-
Other
U8150 IDEOS
No
Watch Buds 2
-
Loudspeaker
U8150 IDEOS
Yes
Watch Buds 2
No
3.5mm jack
U8150 IDEOS
Yes
Watch Buds 2
No
WLAN
U8150 IDEOS
Wi-Fi 802.11 b/g/n
Watch Buds 2
No
Bluetooth
U8150 IDEOS
2.1, A2DP
Watch Buds 2
5.2, A2DP, LE
Positioning
U8150 IDEOS
GPS, A-GPS
Watch Buds 2
GPS, GLONASS, GALILEO, BDS
Radio
U8150 IDEOS
Stereo FM radio, RDS
Watch Buds 2
No
USB
U8150 IDEOS
microUSB 2.0
Watch Buds 2
No
NFC
U8150 IDEOS
-
Watch Buds 2
Yes
Sensors
U8150 IDEOS
Accelerometer, proximity, compass
Watch Buds 2
Accelerometer, gyro, heart rate, SpO2
Browser
U8150 IDEOS
HTML, Adobe Flash
Watch Buds 2
-
Other
U8150 IDEOS
MP3/WMA/eAAC+ player MP4/H.264 player Organizer Photo viewer/editor Voice memo/dial/commands Predictive text input (Swype)
Watch Buds 2
-
Type
U8150 IDEOS
Removable Li-Ion 1200 mAh battery
Watch Buds 2
Li-Ion 410 mAh
Stand-by
U8150 IDEOS
Up to 220 h (2G) / Up to 300 h (3G)
Watch Buds 2
-
Talk time
U8150 IDEOS
Up to 4 h (2G) / Up to 5 h (3G)
Watch Buds 2
-
Charging
U8150 IDEOS
-
Watch Buds 2
Wireless
Colors
U8150 IDEOS
Black body / blue, red, yellow backpanels
Watch Buds 2
Black, Silver
Price
U8150 IDEOS
About 60 EUR
Watch Buds 2
About 440 EUR
Models
U8150 IDEOS
-
Watch Buds 2
LBA-B19
Other
U8150 IDEOS
-
Watch Buds 2
No