Screen size
Watch Buds 21.5"
Watch Fit 4 ProWinner: 1.8"+18%
Quick verdict
Watch Fit 4 Pro leads the measured specs 5-3.
Measured wins
Watch Buds 2
3
spec wins
Ties
5
equal specs
Watch Fit 4 Pro
5
spec wins
Overall winner
Screen size
Technology
Watch Buds 2
No cellular connectivity
Watch Fit 4 Pro
No cellular connectivity
2G bands
Watch Buds 2
N/A
Watch Fit 4 Pro
N/A
3G bands
Watch Buds 2
N/A
Watch Fit 4 Pro
N/A
4G bands
Watch Buds 2
N/A
Watch Fit 4 Pro
Resolution
Refresh rate
Peak brightness
equal specsPixel density
CPU speed
RAM
Storage
Main camera
Front camera
Battery
Wired charging
Weight
Thickness
IP rating
Wi‑Fi
Bluetooth
USB
5G support
equal specsNFC
equal specs3.5mm jack
equal specsSD card
equal specsStereo speakers
N/A
Speed
Watch Buds 2
No
Watch Fit 4 Pro
No
GPRS
Watch Buds 2
No
Watch Fit 4 Pro
No
EDGE
Watch Buds 2
No
Watch Fit 4 Pro
No
Announced
Watch Buds 2
2026, April 20
Watch Fit 4 Pro
2025, May 15
Status
Watch Buds 2
Available. Released 2026, April 20
Watch Fit 4 Pro
Available. Released 2025, May 26
Dimensions
Watch Buds 2
47 x 47 x 14.7 mm (1.85 x 1.85 x 0.58 in)
Watch Fit 4 Pro
44.5 x 40 x 9.3 mm (1.75 x 1.57 x 0.37 in)
Weight
Watch Buds 2
54.5 g (1.90 oz)
Watch Fit 4 Pro
30.4 g (1.09 oz)
Build
Watch Buds 2
Titanium alloy frame, glass-fiber reinforced plastic back
Watch Fit 4 Pro
Glass front (Sapphire Glass), titanium alloy bezel, aluminum alloy mid-frame, polymer fiber back
SIM
Watch Buds 2
No
Watch Fit 4 Pro
No
Other
Watch Buds 2
Built-in wireless earbuds housed beneath the display; charging from the watch Compatible with standard 22mm straps
Watch Fit 4 Pro
5 ATM water resistant IP6X dust tight ECG certified 40m swimproof/diving (EN13319)
Type
Watch Buds 2
LTPO AMOLED, 3000 nits (peak)
Watch Fit 4 Pro
AMOLED, 3000 nits (peak)
Size
Watch Buds 2
1.5 inches
Watch Fit 4 Pro
1.82 inches
Resolution
Watch Buds 2
466 x 466 pixels (~310 ppi density)
Watch Fit 4 Pro
480 x 408 pixels (~347 ppi density)
Protection
Watch Buds 2
-
Watch Fit 4 Pro
Sapphire Glass
OS
Watch Buds 2
HarmonyOS
Watch Fit 4 Pro
-
Card slot
Watch Buds 2
No
Watch Fit 4 Pro
No
Phonebook
Watch Buds 2
-
Watch Fit 4 Pro
No
Call records
Watch Buds 2
-
Watch Fit 4 Pro
No
Internal
Watch Buds 2
-
Watch Fit 4 Pro
Unspecified
Other
Watch Buds 2
No
Watch Fit 4 Pro
No
Loudspeaker
Watch Buds 2
No
Watch Fit 4 Pro
Yes
3.5mm jack
Watch Buds 2
No
Watch Fit 4 Pro
No
WLAN
Watch Buds 2
No
Watch Fit 4 Pro
No
Bluetooth
Watch Buds 2
5.2, A2DP, LE
Watch Fit 4 Pro
5.2, LE
Positioning
Watch Buds 2
GPS, GLONASS, GALILEO, BDS
Watch Fit 4 Pro
GPS (L1+L5), GALILEO (E1+E5a), QZSS (L1+L5), BDS (B1l+B1C), GLONASS
NFC
Watch Buds 2
Yes
Watch Fit 4 Pro
Yes
Radio
Watch Buds 2
No
Watch Fit 4 Pro
No
USB
Watch Buds 2
No
Watch Fit 4 Pro
No
Sensors
Watch Buds 2
Accelerometer, gyro, heart rate, SpO2
Watch Fit 4 Pro
Accelerometer, gyro, heart rate, SpO2, compass, barometer, thermometer (skin temperature)
Messaging
Watch Buds 2
-
Watch Fit 4 Pro
Email, IM
Games
Watch Buds 2
-
Watch Fit 4 Pro
No
Java
Watch Buds 2
-
Watch Fit 4 Pro
No
Other
Watch Buds 2
-
Watch Fit 4 Pro
Pulse wave arrhythmia analysis
Type
Watch Buds 2
Li-Ion 410 mAh
Watch Fit 4 Pro
Li-Ion 400 mAh
Charging
Watch Buds 2
Wireless
Watch Fit 4 Pro
5W wireless
Colors
Watch Buds 2
Black, Silver
Watch Fit 4 Pro
Green, Blue, Black
Models
Watch Buds 2
LBA-B19
Watch Fit 4 Pro
SYA-B29
Price
Watch Buds 2
About 440 EUR
Watch Fit 4 Pro
$ 227.43 / € 160.61