Screen size
Watch Ultra1.9"
Watch Ultra 3Winner: 2.0"+3%
Quick verdict
Watch Ultra 3 leads the measured specs 7-1.
Measured wins
Watch Ultra
1
spec wins
Ties
5
equal specs
Watch Ultra 3
7
spec wins
Overall winner
Screen size
Technology
Watch Ultra
GSM / HSPA / LTE
Watch Ultra 3
GSM / HSPA / LTE / 5G
2G bands
Watch Ultra
GSM 850 / 900 / 1800 / 1900
Watch Ultra 3
GSM 850 / 900 / 1800 / 1900
3G bands
Watch Ultra
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 - International, China, HK, HSDPA 850 / 1700(AWS) / 1900 / 2100 - USA, LATAM, Canada
Watch Ultra 3
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 - International, China, HK, HSDPA 850 / 1700(AWS) / 1900 / 2100 - USA, LATAM, Canada
4G bands
Resolution
Refresh rate
Peak brightness
Pixel density
CPU speed
RAM
Storage
Main camera
Front camera
Battery
Wired charging
Weight
equal specsThickness
IP rating
Wi‑Fi
Bluetooth
equal specsUSB
5G support
NFC
equal specs3.5mm jack
equal specsSD card
equal specsStereo speakers
Watch Ultra
1, 2, 3, 4, 5, 6, 7, 8, 18, 19, 20, 25, 26, 28, 39, 40, 41, 66 - International, China, HK, 1, 2, 3, 4, 5, 6, 7, 12, 13, 14, 17, 18, 19, 25, 26, 39, 40, 41, 66 - USA, LATAM, Canada
Watch Ultra 3
1, 2, 3, 4, 5, 6, 7, 8, 18, 19, 20, 25, 26, 28, 39, 40, 41, 66 - International, China, HK, 1, 2, 3, 4, 5, 6, 7, 12, 13, 14, 17, 18, 19, 25, 26, 39, 40, 41, 66 - USA, LATAM, Canada
Speed
Watch Ultra
HSPA, LTE
Watch Ultra 3
HSPA, LTE, 5G
5G bands
Watch Ultra
-
Watch Ultra 3
SA/NSA
Announced
Watch Ultra
2022, September 07
Watch Ultra 3
2025, September 09
Status
Watch Ultra
Available. Released 2022, September 23
Watch Ultra 3
Available. Released 2025, September 19
Dimensions
Watch Ultra
49 x 44 x 14.4 mm (1.93 x 1.73 x 0.57 in)
Watch Ultra 3
49 x 44 x 12 mm (1.93 x 1.73 x 0.47 in)
Weight
Watch Ultra
61.3 g (2.15 oz)
Watch Ultra 3
61.6 g or 61.8 g (black) (2.15 oz)
Build
Watch Ultra
Sapphire crystal front, ceramic/sapphire crystal back, titanium frame
Watch Ultra 3
Sapphire crystal front, ceramic/sapphire crystal back, titanium frame (grade 5)
SIM
Watch Ultra
eSIM
Watch Ultra 3
eSIM
Other
Watch Ultra
IP6X certified 100m water resistant (WR100) 40m swimproof/diving (EN13319) MIL-STD-810H compliant ECG certified (region dependent SW application; HW available on all models)
Watch Ultra 3
IP6X certified 100m water resistant (22810:2010) 40m swimproof/diving (EN13319) MIL-STD-810H compliant ECG certified (region dependent SW application; HW available on all models)
Type
Watch Ultra
Retina LTPO OLED, 2000 nits (peak)
Watch Ultra 3
Retina LTPO3 OLED, 3000 nits (peak)
Size
Watch Ultra
1.92 inches
Watch Ultra 3
1.98 inches
Resolution
Watch Ultra
502 x 410 pixels (~338 ppi density)
Watch Ultra 3
514 x 422 pixels (~326 ppi density)
Protection
Watch Ultra
Sapphire crystal glass
Watch Ultra 3
Sapphire crystal glass
Other
Watch Ultra
-
Watch Ultra 3
Wide-angle OLED
OS
Watch Ultra
watchOS 9.0, upgradable to watchOS 26.2.1
Watch Ultra 3
watchOS 26, upgradable to watchOS 26.2.1
Chipset
Watch Ultra
Apple S8
Watch Ultra 3
Apple S10
CPU
Watch Ultra
Dual-core
Watch Ultra 3
Dual-core
GPU
Watch Ultra
PowerVR
Watch Ultra 3
PowerVR
Card slot
Watch Ultra
No
Watch Ultra 3
No
Internal
Watch Ultra
32GB
Watch Ultra 3
64GB
Other
Watch Ultra
No
Watch Ultra 3
No
Loudspeaker
Watch Ultra
Yes, with dual speakers (86-decibel)
Watch Ultra 3
Yes, with dual speakers (86-decibel)
3.5mm jack
Watch Ultra
No
Watch Ultra 3
No
WLAN
Watch Ultra
Wi-Fi 802.11 b/g/n, dual-band
Watch Ultra 3
Wi-Fi 802.11 b/g/n, dual-band
Bluetooth
Watch Ultra
5.3, A2DP, LE
Watch Ultra 3
5.3, A2DP, LE
Positioning
Watch Ultra
GPS (L1+L5), GLONASS, GALILEO, BDS
Watch Ultra 3
GPS (L1+L5), GLONASS, GALILEO, BDS, QZSS
NFC
Watch Ultra
Yes
Watch Ultra 3
Yes
Radio
Watch Ultra
No
Watch Ultra 3
No
USB
Watch Ultra
No
Watch Ultra 3
No
Sensors
Watch Ultra
Accelerometer, gyro, heart rate, barometer, always-on altimeter, compass, SpO2, VO2max, temperature (body), temperature (water)
Watch Ultra 3
Accelerometer, gyro, heart rate, barometer, always-on altimeter (-500m to 9000m), compass, SpO2, VO2max, temperature (body), temperature (water)
Other
Watch Ultra
Temperature sensing (0.01˚ accuracy) Depth gauge (±1m accuracy) Ultra Wideband (UWB) support
Watch Ultra 3
Temperature sensing (0.01˚ accuracy) Depth gauge (±1m accuracy) Ultra Wideband (UWB) support (gen2 chip) Emergency SOS via satellite
Type
Watch Ultra
Li-Ion 542 mAh
Watch Ultra 3
Li-Ion 599 mAh
Charging
Watch Ultra
Wireless, 0-80% in 60 min
Watch Ultra 3
Wireless, 0-80% in 45 min
Colors
Watch Ultra
Titanium
Watch Ultra 3
Natural, Black
Models
Watch Ultra
A2684, A2622, A2859, watch6,18
Watch Ultra 3
A3281, A3282
SAR EU
Watch Ultra
0.35 W/kg (head) 0.60 W/kg (body)
Watch Ultra 3
1.19 W/kg (head)
Price
Watch Ultra
About 550 EUR
Watch Ultra 3
€ 829.00
SAR
Watch Ultra
-
Watch Ultra 3
1.16 W/kg (head)