Screen size
Watch Fit 4 ProWinner: 1.8"+24%
Watch Ultimate Design Spring1.4"
Quick verdict
Watch Fit 4 Pro and Watch Ultimate Design Spring are close on the measured specs.
Measured wins
Watch Fit 4 Pro
5
spec wins
Ties
5
equal specs
Watch Ultimate Design Spring
5
spec wins
Screen size
Technology
Watch Fit 4 Pro
No cellular connectivity
Watch Ultimate Design Spring
HSPA / LTE
2G bands
Watch Fit 4 Pro
N/A
Watch Ultimate Design Spring
N/A
3G bands
Watch Fit 4 Pro
N/A
Watch Ultimate Design Spring
HSDPA 850 / 900 / 1900 / 2100
4G bands
Watch Fit 4 Pro
N/A
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
Watch Ultimate Design Spring
LTE
Speed
Watch Fit 4 Pro
No
Watch Ultimate Design Spring
HSPA, LTE
GPRS
Watch Fit 4 Pro
No
Watch Ultimate Design Spring
-
EDGE
Watch Fit 4 Pro
No
Watch Ultimate Design Spring
-
Announced
Watch Fit 4 Pro
2025, May 15
Watch Ultimate Design Spring
2026, April 20
Status
Watch Fit 4 Pro
Available. Released 2025, May 26
Watch Ultimate Design Spring
Available. Released 2026, May 08
Dimensions
Watch Fit 4 Pro
44.5 x 40 x 9.3 mm (1.75 x 1.57 x 0.37 in)
Watch Ultimate Design Spring
42.9 x 42.9 x 10.8 mm (1.69 x 1.69 x 0.43 in)
Weight
Watch Fit 4 Pro
30.4 g (1.09 oz)
Watch Ultimate Design Spring
91 g (3.21 oz)
Build
Watch Fit 4 Pro
Glass front (Sapphire Glass), titanium alloy bezel, aluminum alloy mid-frame, polymer fiber back
Watch Ultimate Design Spring
Sapphire crystal front, titanium alloy front shell, ceramic back
SIM
Watch Fit 4 Pro
No
Watch Ultimate Design Spring
eSIM
Other
Watch Fit 4 Pro
5 ATM water resistant IP6X dust tight ECG certified 40m swimproof/diving (EN13319)
Watch Ultimate Design Spring
99 natural diamonds (0.8 carats) 5 ATM (maximum depth 40 meters when diving) IP68/IP69 dust tight and water resistant (high pressure water jets; immersible up to 1.5m for 30 min) ECG certified
Type
Watch Fit 4 Pro
AMOLED, 3000 nits (peak)
Watch Ultimate Design Spring
LTPO2 AMOLED, 3000 nits (peak)
Size
Watch Fit 4 Pro
1.82 inches
Watch Ultimate Design Spring
1.38 inches
Resolution
Watch Fit 4 Pro
480 x 408 pixels (~347 ppi density)
Watch Ultimate Design Spring
466 x 466 pixels (~338 ppi density)
Protection
Watch Fit 4 Pro
Sapphire Glass
Watch Ultimate Design Spring
Sapphire crystal glass
Card slot
Watch Fit 4 Pro
No
Watch Ultimate Design Spring
No
Phonebook
Watch Fit 4 Pro
No
Watch Ultimate Design Spring
-
Call records
Watch Fit 4 Pro
No
Watch Ultimate Design Spring
-
Internal
Watch Fit 4 Pro
Unspecified
Watch Ultimate Design Spring
-
Other
Watch Fit 4 Pro
No
Watch Ultimate Design Spring
No
Loudspeaker
Watch Fit 4 Pro
Yes
Watch Ultimate Design Spring
Yes
3.5mm jack
Watch Fit 4 Pro
No
Watch Ultimate Design Spring
No
WLAN
Watch Fit 4 Pro
No
Watch Ultimate Design Spring
Wi-Fi 802.11 a/b/g/n/ac/6, dual-band
Bluetooth
Watch Fit 4 Pro
5.2, LE
Watch Ultimate Design Spring
5.2, A2DP, LE
Positioning
Watch Fit 4 Pro
GPS (L1+L5), GALILEO (E1+E5a), QZSS (L1+L5), BDS (B1l+B1C), GLONASS
Watch Ultimate Design Spring
GPS (L1+L5), GLONASS, GALILEO (L1+L5), QZSS (L1+L5), BDS
NFC
Watch Fit 4 Pro
Yes
Watch Ultimate Design Spring
Yes
Radio
Watch Fit 4 Pro
No
Watch Ultimate Design Spring
No
USB
Watch Fit 4 Pro
No
Watch Ultimate Design Spring
No
Sensors
Watch Fit 4 Pro
Accelerometer, gyro, heart rate, SpO2, compass, barometer, thermometer (skin temperature)
Watch Ultimate Design Spring
Accelerometer, gyro, heart rate, barometer, compass, SpO2, thermometer (body temperature), X-TAP
Messaging
Watch Fit 4 Pro
Email, IM
Watch Ultimate Design Spring
-
Games
Watch Fit 4 Pro
No
Watch Ultimate Design Spring
-
Java
Watch Fit 4 Pro
No
Watch Ultimate Design Spring
-
Other
Watch Fit 4 Pro
Pulse wave arrhythmia analysis
Watch Ultimate Design Spring
Sleep apnea detection Heart Rate Variability (HRV) Arterial Stiffness Detection
Type
Watch Fit 4 Pro
Li-Ion 400 mAh
Watch Ultimate Design Spring
Li-Ion 540 mAh
Charging
Watch Fit 4 Pro
5W wireless
Watch Ultimate Design Spring
Wireless
Colors
Watch Fit 4 Pro
Green, Blue, Black
Watch Ultimate Design Spring
Diamond Silver
Models
Watch Fit 4 Pro
SYA-B29
Watch Ultimate Design Spring
CHC-AL00
Price
Watch Fit 4 Pro
$ 227.43 / € 160.61
Watch Ultimate Design Spring
About 4000 EUR
OS
Watch Fit 4 Pro
-
Watch Ultimate Design Spring
HarmonyOS 6.1
Chipset
Watch Fit 4 Pro
-
Watch Ultimate Design Spring
Kirin W80