Screen size
Children's Watch 4XWinner: 1.4"+2.1%
Watch Ultimate Design Spring1.4"
Quick verdict
Children's Watch 4X leads the measured specs 8-7.
Measured wins
Children's Watch 4X
8
spec wins
Overall winner
Ties
4
equal specs
Watch Ultimate Design Spring
7
spec wins
Screen size
Technology
Children's Watch 4X
GSM / HSPA / LTE
Watch Ultimate Design Spring
HSPA / LTE
2G bands
Children's Watch 4X
GSM 900 / 1800
Watch Ultimate Design Spring
N/A
3G bands
Children's Watch 4X
HSDPA 2100
Watch Ultimate Design Spring
HSDPA 850 / 900 / 1900 / 2100
4G bands
Children's Watch 4X
1, 3, 7, 8, 38, 40 - Europe, Central Asia, 2, 5, 7, 41 - North America, 2, 3, 5, 7, 38, 41 - LATAM, 1, 3, 5, 7, 8, 38, 40 - Asia Pacific
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
equal specs3.5mm jack
equal specsSD card
equal specsStereo speakers
Watch Ultimate Design Spring
LTE
Speed
Children's Watch 4X
HSPA, LTE
Watch Ultimate Design Spring
HSPA, LTE
Announced
Children's Watch 4X
2020, July 30. Released 2020, August 20
Watch Ultimate Design Spring
2026, April 20
Status
Children's Watch 4X
Discontinued
Watch Ultimate Design Spring
Available. Released 2026, May 08
Dimensions
Children's Watch 4X
53 x 45.7 x 14.7 mm (2.09 x 1.80 x 0.58 in)
Watch Ultimate Design Spring
42.9 x 42.9 x 10.8 mm (1.69 x 1.69 x 0.43 in)
Weight
Children's Watch 4X
67.7 g (2.40 oz)
Watch Ultimate Design Spring
91 g (3.21 oz)
SIM
Children's Watch 4X
Nano-SIM
Watch Ultimate Design Spring
eSIM
Other
Children's Watch 4X
5ATM water resistant 50m water resistant
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
Build
Children's Watch 4X
-
Watch Ultimate Design Spring
Sapphire crystal front, titanium alloy front shell, ceramic back
Type
Children's Watch 4X
AMOLED
Watch Ultimate Design Spring
LTPO2 AMOLED, 3000 nits (peak)
Size
Children's Watch 4X
1.41 inches
Watch Ultimate Design Spring
1.38 inches
Resolution
Children's Watch 4X
320 x 360 pixels (~342 ppi density)
Watch Ultimate Design Spring
466 x 466 pixels (~338 ppi density)
Protection
Children's Watch 4X
-
Watch Ultimate Design Spring
Sapphire crystal glass
OS
Children's Watch 4X
Proprietary OS
Watch Ultimate Design Spring
HarmonyOS 6.1
Chipset
Children's Watch 4X
-
Watch Ultimate Design Spring
Kirin W80
Card slot
Children's Watch 4X
No
Watch Ultimate Design Spring
No
Internal
Children's Watch 4X
16GB 1GB RAM
Watch Ultimate Design Spring
-
Other
Children's Watch 4X
eMMC 4.5
Watch Ultimate Design Spring
-
Single
Children's Watch 4X
8 MP, f/2.0, 23mm (wide), AF
Watch Ultimate Design Spring
-
Video
Children's Watch 4X
Watch Ultimate Design Spring
-
Single
Children's Watch 4X
5 MP, f/2.2, (wide)
Watch Ultimate Design Spring
-
Video
Children's Watch 4X
Watch Ultimate Design Spring
-
Loudspeaker
Children's Watch 4X
Yes
Watch Ultimate Design Spring
Yes
3.5mm jack
Children's Watch 4X
No
Watch Ultimate Design Spring
No
WLAN
Children's Watch 4X
Yes
Watch Ultimate Design Spring
Wi-Fi 802.11 a/b/g/n/ac/6, dual-band
Bluetooth
Children's Watch 4X
Yes
Watch Ultimate Design Spring
5.2, A2DP, LE
Positioning
Children's Watch 4X
GPS (L1+L5), GLONASS, BDS, GALILEO, QZSS
Watch Ultimate Design Spring
GPS (L1+L5), GLONASS, GALILEO (L1+L5), QZSS (L1+L5), BDS
NFC
Children's Watch 4X
Yes
Watch Ultimate Design Spring
Yes
Radio
Children's Watch 4X
No
Watch Ultimate Design Spring
No
USB
Children's Watch 4X
No
Watch Ultimate Design Spring
No
Sensors
Children's Watch 4X
Accelerometer, gyro
Watch Ultimate Design Spring
Accelerometer, gyro, heart rate, barometer, compass, SpO2, thermometer (body temperature), X-TAP
Other
Children's Watch 4X
-
Watch Ultimate Design Spring
Sleep apnea detection Heart Rate Variability (HRV) Arterial Stiffness Detection
Type
Children's Watch 4X
Li-Ion 800 mAh
Watch Ultimate Design Spring
Li-Ion 540 mAh
Charging
Children's Watch 4X
10W wired Wireless, 50% in 20 min
Watch Ultimate Design Spring
Wireless
Colors
Children's Watch 4X
Blue, Pink, White
Watch Ultimate Design Spring
Diamond Silver
Models
Children's Watch 4X
NIK-AL00
Watch Ultimate Design Spring
CHC-AL00
Price
Children's Watch 4X
About 170 EUR
Watch Ultimate Design Spring
About 4000 EUR
Other
Children's Watch 4X
-
Watch Ultimate Design Spring
No