Screen size
Activa 4GWinner: 3.5"+57%
Watch Buds 21.5"
Quick verdict
Activa 4G leads the measured specs 7-6.
Measured wins
Activa 4G
7
spec wins
Overall winner
Ties
1
equal specs
Watch Buds 2
6
spec wins
Screen size
Technology
Activa 4G
CDMA / LTE
Watch Buds 2
No cellular connectivity
2G bands
Activa 4G
CDMA 850 / 1700 / 1900
Watch Buds 2
N/A
4G bands
Activa 4G
2, 4
Watch Buds 2
N/A
Speed
Activa 4G
LTE
Watch Buds 2
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
GPRS
Activa 4G
No
Watch Buds 2
No
EDGE
Activa 4G
No
Watch Buds 2
No
3G bands
Activa 4G
-
Watch Buds 2
N/A
Announced
Activa 4G
2012, June. Released 2012, June
Watch Buds 2
2026, April 20
Status
Activa 4G
Discontinued
Watch Buds 2
Available. Released 2026, April 20
Dimensions
Activa 4G
122 x 61 x 10.7 mm (4.80 x 2.40 x 0.42 in)
Watch Buds 2
47 x 47 x 14.7 mm (1.85 x 1.85 x 0.58 in)
Weight
Activa 4G
140 g (4.94 oz)
Watch Buds 2
54.5 g (1.90 oz)
SIM
Activa 4G
Mini-SIM
Watch Buds 2
No
Build
Activa 4G
-
Watch Buds 2
Titanium alloy frame, glass-fiber reinforced plastic back
Other
Activa 4G
-
Watch Buds 2
Built-in wireless earbuds housed beneath the display; charging from the watch Compatible with standard 22mm straps
Type
Activa 4G
TFT, 256K colors
Watch Buds 2
LTPO AMOLED, 3000 nits (peak)
Size
Activa 4G
3.5 inches, 36.5 cm2 (~49.0% screen-to-body ratio)
Watch Buds 2
1.5 inches
Resolution
Activa 4G
320 x 480 pixels, 3:2 ratio (~165 ppi density)
Watch Buds 2
466 x 466 pixels (~310 ppi density)
OS
Activa 4G
Android 2.3.6 (Gingerbread)
Watch Buds 2
HarmonyOS
Chipset
Activa 4G
Qualcomm MSM7627T
Watch Buds 2
-
CPU
Activa 4G
800 MHz Cortex-A5
Watch Buds 2
-
Card slot
Activa 4G
microSDHC (dedicated slot), 4 GB included
Watch Buds 2
No
Internal
Activa 4G
150MB 512MB RAM
Watch Buds 2
-
Single
Activa 4G
5 MP, AF
Watch Buds 2
-
Features
Activa 4G
LED flash
Watch Buds 2
-
Video
Activa 4G
Yes
Watch Buds 2
-
Single
Activa 4G
VGA
Watch Buds 2
-
Video
Activa 4G
Watch Buds 2
-
Loudspeaker
Activa 4G
Yes
Watch Buds 2
No
3.5mm jack
Activa 4G
Yes
Watch Buds 2
No
WLAN
Activa 4G
Wi-Fi 802.11 b/g
Watch Buds 2
No
Bluetooth
Activa 4G
2.1, A2DP, EDR
Watch Buds 2
5.2, A2DP, LE
Positioning
Activa 4G
GPS, A-GPS
Watch Buds 2
GPS, GLONASS, GALILEO, BDS
Radio
Activa 4G
No
Watch Buds 2
No
USB
Activa 4G
microUSB 2.0
Watch Buds 2
No
NFC
Activa 4G
-
Watch Buds 2
Yes
Sensors
Activa 4G
Watch Buds 2
Accelerometer, gyro, heart rate, SpO2
Other
Activa 4G
MP4/WMV/H.264 player MP3/WAV/eAAC+ player Organizer Photo/video editor Document viewer Voice memo/dial Predictive text input (Swype)
Watch Buds 2
-
Type
Activa 4G
Removable Li-Ion 1880 mAh battery
Watch Buds 2
Li-Ion 410 mAh
Stand-by
Activa 4G
Up to 115 h
Watch Buds 2
-
Talk time
Activa 4G
Up to 3 h 20 min
Watch Buds 2
-
Charging
Activa 4G
-
Watch Buds 2
Wireless
Colors
Activa 4G
Black
Watch Buds 2
Black, Silver
Price
Activa 4G
About 110 EUR
Watch Buds 2
About 440 EUR
Models
Activa 4G
-
Watch Buds 2
LBA-B19
Other
Activa 4G
-
Watch Buds 2
No