Screen size
Watch 4Winner: 1.8"+17%
Watch 6 Plus1.5"
Quick verdict
Watch 6 Plus leads the measured specs 6-3.
Measured wins
Watch 4
3
spec wins
Ties
5
equal specs
Watch 6 Plus
6
spec wins
Overall winner
Screen size
Technology
Watch 4
GSM / HSPA / LTE
Watch 6 Plus
No cellular connectivity
2G bands
Watch 4
GSM 850 / 900 / 1800 / 1900
Watch 6 Plus
N/A
3G bands
Watch 4
HSDPA 900 / 2100
Watch 6 Plus
N/A
4G bands
Watch 4
LTE
Watch 6 Plus
Resolution
Refresh rate
Peak brightness
Pixel density
CPU speed
RAM
Storage
equal specsMain 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 4
HSPA, LTE
Watch 6 Plus
No
GPRS
Watch 4
-
Watch 6 Plus
No
EDGE
Watch 4
-
Watch 6 Plus
No
Announced
Watch 4
2023, July 12
Watch 6 Plus
2026, July 10
Status
Watch 4
Available. Released 2023, July 12
Watch 6 Plus
Released Jul 22, 2026
Dimensions
Watch 4
45.3 x 39.1 x 11.2 mm (1.78 x 1.54 x 0.44 in)
Watch 6 Plus
46.5 x 46.5 x 10.8 mm (1.83 x 1.83 x 0.43 in)
Weight
Watch 4
32 g (1.13 oz)
Watch 6 Plus
41 g or 50 g (1.45 oz)
Build
Watch 4
Glass front, plastic back, plastic frame
Watch 6 Plus
Glass front, stainless steel bezel (316L), aluminum frame, fiber reinforced plastic back
SIM
Watch 4
eSIM
Watch 6 Plus
No
Other
Watch 4
5ATM water resistant (50m waterproof)
Watch 6 Plus
P68/IP69 dust tight and water resistant (high pressure water jets; immersible up to 1.5m for 30 min) 5 ATM water resistant
Type
Watch 4
AMOLED
Watch 6 Plus
AMOLED, 3000 nits (peak)
Size
Watch 4
1.75 inches
Watch 6 Plus
1.46 inches
Resolution
Watch 4
390 x 450 pixels (~340 ppi density)
Watch 6 Plus
464 x 464 pixels (~317 ppi density)
OS
Watch 4
MagicOS 7.2
Watch 6 Plus
MagicOS 10
Card slot
Watch 4
No
Watch 6 Plus
No
Internal
Watch 4
4GB 32MB RAM
Watch 6 Plus
4GB
Other
Watch 4
No
Watch 6 Plus
No
Loudspeaker
Watch 4
Yes
Watch 6 Plus
Yes
3.5mm jack
Watch 4
No
Watch 6 Plus
No
WLAN
Watch 4
No
Watch 6 Plus
No
Bluetooth
Watch 4
5.2, LE
Watch 6 Plus
5.4, LE, EDR
Positioning
Watch 4
GPS, GLONASS, GALILEO, BDS, QZSS
Watch 6 Plus
GPS (L1+L5), BDS, GALILEO, QZSS, GLONASS, NavIC
NFC
Watch 4
Yes
Watch 6 Plus
Yes
Radio
Watch 4
No
Watch 6 Plus
No
USB
Watch 4
No
Watch 6 Plus
No
Sensors
Watch 4
Accelerometer, gyro, heart rate, SpO2
Watch 6 Plus
Accelerometer, gyro, compass, barometer, heart rate, SpO2
Type
Watch 4
Li-Ion 451 mAh
Watch 6 Plus
Si/C Li-Po 1000 mAh
Colors
Watch 4
Black, Gold
Watch 6 Plus
Black, Silver
Models
Watch 4
TMA-L19
Watch 6 Plus
ROM-B19
Price
Watch 4
About 120 EUR
Watch 6 Plus
About 170 EUR