Screen size
U8500 IDEOS X2Winner: 3.2"+53%
Watch Buds 21.5"
Quick verdict
U8500 IDEOS X2 leads the measured specs 7-6.
Measured wins
U8500 IDEOS X2
7
spec wins
Overall winner
Ties
1
equal specs
Watch Buds 2
6
spec wins
Screen size
Technology
U8500 IDEOS X2
GSM / HSPA
Watch Buds 2
No cellular connectivity
2G bands
U8500 IDEOS X2
GSM 850 / 900 / 1800 / 1900
Watch Buds 2
N/A
3G bands
U8500 IDEOS X2
HSDPA 900 / 2100
Watch Buds 2
N/A
Speed
U8500 IDEOS X2
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
U8500 IDEOS X2
-
Watch Buds 2
N/A
GPRS
U8500 IDEOS X2
-
Watch Buds 2
No
EDGE
U8500 IDEOS X2
-
Watch Buds 2
No
Announced
U8500 IDEOS X2
2010, June. Released 2010, 3Q
Watch Buds 2
2026, April 20
Status
U8500 IDEOS X2
Discontinued
Watch Buds 2
Available. Released 2026, April 20
Dimensions
U8500 IDEOS X2
112 x 58 x 12.8 mm (4.41 x 2.28 x 0.50 in)
Watch Buds 2
47 x 47 x 14.7 mm (1.85 x 1.85 x 0.58 in)
Weight
U8500 IDEOS X2
115 g (4.06 oz)
Watch Buds 2
54.5 g (1.90 oz)
SIM
U8500 IDEOS X2
Mini-SIM
Watch Buds 2
No
Other
U8500 IDEOS X2
Optical trackpad
Watch Buds 2
Built-in wireless earbuds housed beneath the display; charging from the watch Compatible with standard 22mm straps
Build
U8500 IDEOS X2
-
Watch Buds 2
Titanium alloy frame, glass-fiber reinforced plastic back
Type
U8500 IDEOS X2
TFT, 256K colors
Watch Buds 2
LTPO AMOLED, 3000 nits (peak)
Size
U8500 IDEOS X2
3.2 inches, 30.5 cm2 (~46.9% screen-to-body ratio)
Watch Buds 2
1.5 inches
Resolution
U8500 IDEOS X2
320 x 480 pixels, 3:2 ratio (~180 ppi density)
Watch Buds 2
466 x 466 pixels (~310 ppi density)
OS
U8500 IDEOS X2
Android 2.1 (Eclair), upgradable to 2.2 (Froyo)
Watch Buds 2
HarmonyOS
CPU
U8500 IDEOS X2
528 MHz
Watch Buds 2
-
Card slot
U8500 IDEOS X2
microSDHC (dedicated slot)
Watch Buds 2
No
Internal
U8500 IDEOS X2
512MB 256MB RAM
Watch Buds 2
-
Single
U8500 IDEOS X2
3.15 MP
Watch Buds 2
-
Video
U8500 IDEOS X2
CIF@15fps
Watch Buds 2
-
Other
U8500 IDEOS X2
No
Watch Buds 2
-
Loudspeaker
U8500 IDEOS X2
Yes
Watch Buds 2
No
3.5mm jack
U8500 IDEOS X2
Yes
Watch Buds 2
No
WLAN
U8500 IDEOS X2
Wi-Fi 802.11 b/g/n (Android v2.2)
Watch Buds 2
No
Bluetooth
U8500 IDEOS X2
2.1, A2DP
Watch Buds 2
5.2, A2DP, LE
Positioning
U8500 IDEOS X2
GPS, A-GPS
Watch Buds 2
GPS, GLONASS, GALILEO, BDS
Radio
U8500 IDEOS X2
FM Radio
Watch Buds 2
No
USB
U8500 IDEOS X2
microUSB 2.0
Watch Buds 2
No
NFC
U8500 IDEOS X2
-
Watch Buds 2
Yes
Sensors
U8500 IDEOS X2
Accelerometer, proximity, compass
Watch Buds 2
Accelerometer, gyro, heart rate, SpO2
Browser
U8500 IDEOS X2
HTML
Watch Buds 2
-
Other
U8500 IDEOS X2
MP3/WMA/eAAC+ player MP4/H.264 player Organizer Photo viewer/editor Voice memo Predictive text input
Watch Buds 2
-
Type
U8500 IDEOS X2
Removable Li-Ion 1150 mAh battery
Watch Buds 2
Li-Ion 410 mAh
Stand-by
U8500 IDEOS X2
Up to 300 h (2G) / Up to 350 h (3G)
Watch Buds 2
-
Talk time
U8500 IDEOS X2
Up to 5 h (2G) / Up to 4 h 10 min (3G)
Watch Buds 2
-
Charging
U8500 IDEOS X2
-
Watch Buds 2
Wireless
Colors
U8500 IDEOS X2
Black/Silver
Watch Buds 2
Black, Silver
Price
U8500 IDEOS X2
About 90 EUR
Watch Buds 2
About 440 EUR
Models
U8500 IDEOS X2
-
Watch Buds 2
LBA-B19
Other
U8500 IDEOS X2
-
Watch Buds 2
No