Screen size
Fusion U8652Winner: 3.5"+57%
Watch Buds 21.5"
Quick verdict
Fusion U8652 leads the measured specs 7-6.
Measured wins
Fusion U8652
7
spec wins
Overall winner
Ties
1
equal specs
Watch Buds 2
6
spec wins
Screen size
Technology
Fusion U8652
GSM / HSPA
Watch Buds 2
No cellular connectivity
2G bands
Fusion U8652
GSM 850 / 900 / 1800 / 1900
Watch Buds 2
N/A
3G bands
Fusion U8652
HSDPA 850 / 2100 / 1800
Watch Buds 2
N/A
Speed
Fusion U8652
HSPA
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
Fusion U8652
-
Watch Buds 2
N/A
GPRS
Fusion U8652
-
Watch Buds 2
No
EDGE
Fusion U8652
-
Watch Buds 2
No
Announced
Fusion U8652
2012, March. Released 2012, March
Watch Buds 2
2026, April 20
Status
Fusion U8652
Discontinued
Watch Buds 2
Available. Released 2026, April 20
Dimensions
Fusion U8652
116.1 x 60.5 x 11.9 mm (4.57 x 2.38 x 0.47 in)
Watch Buds 2
47 x 47 x 14.7 mm (1.85 x 1.85 x 0.58 in)
Weight
Fusion U8652
117.1 g (4.13 oz)
Watch Buds 2
54.5 g (1.90 oz)
SIM
Fusion U8652
Mini-SIM
Watch Buds 2
No
Build
Fusion U8652
-
Watch Buds 2
Titanium alloy frame, glass-fiber reinforced plastic back
Other
Fusion U8652
-
Watch Buds 2
Built-in wireless earbuds housed beneath the display; charging from the watch Compatible with standard 22mm straps
Type
Fusion U8652
TFT, 256K colors
Watch Buds 2
LTPO AMOLED, 3000 nits (peak)
Size
Fusion U8652
3.5 inches, 36.5 cm2 (~51.9% screen-to-body ratio)
Watch Buds 2
1.5 inches
Resolution
Fusion U8652
320 x 480 pixels, 3:2 ratio (~165 ppi density)
Watch Buds 2
466 x 466 pixels (~310 ppi density)
OS
Fusion U8652
Android 2.3.3 (Gingerbread)
Watch Buds 2
HarmonyOS
Card slot
Fusion U8652
microSDHC (dedicated slot)
Watch Buds 2
No
Internal
Fusion U8652
256MB RAM, 512MB
Watch Buds 2
-
Single
Fusion U8652
3.15 MP
Watch Buds 2
-
Video
Fusion U8652
Yes
Watch Buds 2
-
Other
Fusion U8652
No
Watch Buds 2
-
Loudspeaker
Fusion U8652
Yes
Watch Buds 2
No
3.5mm jack
Fusion U8652
Yes
Watch Buds 2
No
WLAN
Fusion U8652
Wi-Fi 802.11 b/g/n
Watch Buds 2
No
Bluetooth
Fusion U8652
2.1, A2DP
Watch Buds 2
5.2, A2DP, LE
Positioning
Fusion U8652
GPS, A-GPS
Watch Buds 2
GPS, GLONASS, GALILEO, BDS
Radio
Fusion U8652
FM radio
Watch Buds 2
No
USB
Fusion U8652
microUSB 2.0
Watch Buds 2
No
NFC
Fusion U8652
-
Watch Buds 2
Yes
Sensors
Fusion U8652
Watch Buds 2
Accelerometer, gyro, heart rate, SpO2
Other
Fusion U8652
MP3/WAV/AAC+ player MP4/H.263 player Organizer Predictive text input
Watch Buds 2
-
Type
Fusion U8652
Removable Li-Ion 1400 mAh battery
Watch Buds 2
Li-Ion 410 mAh
Stand-by
Fusion U8652
Up to 390 h
Watch Buds 2
-
Talk time
Fusion U8652
Up to 6 h 40 min
Watch Buds 2
-
Charging
Fusion U8652
-
Watch Buds 2
Wireless
Colors
Fusion U8652
Black
Watch Buds 2
Black, Silver
Price
Fusion U8652
About 80 EUR
Watch Buds 2
About 440 EUR
Models
Fusion U8652
-
Watch Buds 2
LBA-B19
Other
Fusion U8652
-
Watch Buds 2
No