Screen size
Watch Ultra 21.9"
Watch Ultra 3Winner: 2.0"+3%
Quick verdict
Watch Ultra 3 leads the measured specs 5-1.
Measured wins
Watch Ultra 2
1
spec wins
Ties
7
equal specs
Watch Ultra 3
5
spec wins
Overall winner
Screen size
Technology
Watch Ultra 2
GSM / HSPA / LTE
Watch Ultra 3
GSM / HSPA / LTE / 5G
2G bands
Watch Ultra 2
GSM 850 / 900 / 1800 / 1900
Watch Ultra 3
GSM 850 / 900 / 1800 / 1900
3G bands
Watch Ultra 2
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
equal specsPixel density
CPU speed
RAM
Storage
equal specsMain 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 2
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 2
HSPA, LTE
Watch Ultra 3
HSPA, LTE, 5G
5G bands
Watch Ultra 2
-
Watch Ultra 3
SA/NSA
Announced
Watch Ultra 2
2023, September 12
Watch Ultra 3
2025, September 09
Status
Watch Ultra 2
Available. Released 2023, September 22
Watch Ultra 3
Available. Released 2025, September 19
Dimensions
Watch Ultra 2
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 2
61.4 g or 61.8 g (black) (2.15 oz)
Watch Ultra 3
61.6 g or 61.8 g (black) (2.15 oz)
Build
Watch Ultra 2
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 2
eSIM
Watch Ultra 3
eSIM
Other
Watch Ultra 2
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 2
Retina LTPO2 OLED, 3000 nits (peak)
Watch Ultra 3
Retina LTPO3 OLED, 3000 nits (peak)
Size
Watch Ultra 2
1.92 inches
Watch Ultra 3
1.98 inches
Resolution
Watch Ultra 2
502 x 410 pixels (~338 ppi density)
Watch Ultra 3
514 x 422 pixels (~326 ppi density)
Protection
Watch Ultra 2
Sapphire crystal glass
Watch Ultra 3
Sapphire crystal glass
Other
Watch Ultra 2
-
Watch Ultra 3
Wide-angle OLED
OS
Watch Ultra 2
watchOS 10, upgradable to watchOS 26.2.1
Watch Ultra 3
watchOS 26, upgradable to watchOS 26.2.1
Chipset
Watch Ultra 2
Apple S9
Watch Ultra 3
Apple S10
CPU
Watch Ultra 2
Dual-core
Watch Ultra 3
Dual-core
GPU
Watch Ultra 2
PowerVR
Watch Ultra 3
PowerVR
Card slot
Watch Ultra 2
No
Watch Ultra 3
No
Internal
Watch Ultra 2
64GB
Watch Ultra 3
64GB
Other
Watch Ultra 2
No
Watch Ultra 3
No
Loudspeaker
Watch Ultra 2
Yes, with dual speakers (86-decibel)
Watch Ultra 3
Yes, with dual speakers (86-decibel)
3.5mm jack
Watch Ultra 2
No
Watch Ultra 3
No
WLAN
Watch Ultra 2
Wi-Fi 802.11 b/g/n, dual-band
Watch Ultra 3
Wi-Fi 802.11 b/g/n, dual-band
Bluetooth
Watch Ultra 2
5.3, A2DP, LE
Watch Ultra 3
5.3, A2DP, LE
Positioning
Watch Ultra 2
GPS (L1+L5), GLONASS, GALILEO, BDS
Watch Ultra 3
GPS (L1+L5), GLONASS, GALILEO, BDS, QZSS
NFC
Watch Ultra 2
Yes
Watch Ultra 3
Yes
Radio
Watch Ultra 2
No
Watch Ultra 3
No
USB
Watch Ultra 2
No
Watch Ultra 3
No
Sensors
Watch Ultra 2
Accelerometer, gyro, heart rate, barometer, always-on altimeter (-500m to 9000m), 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 2
Temperature sensing (0.01˚ accuracy) Depth gauge (±1m accuracy) Ultra Wideband (UWB) support (gen2 chip)
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 2
Li-Ion 564 mAh
Watch Ultra 3
Li-Ion 599 mAh
Charging
Watch Ultra 2
Wireless, 0-80% in 60 min
Watch Ultra 3
Wireless, 0-80% in 45 min
Colors
Watch Ultra 2
Titanium, Black
Watch Ultra 3
Natural, Black
Models
Watch Ultra 2
A2986, A2987, Watch7,5
Watch Ultra 3
A3281, A3282
SAR
Watch Ultra 2
0.88 W/kg (head)
Watch Ultra 3
1.16 W/kg (head)
SAR EU
Watch Ultra 2
0.22 W/kg (head)
Watch Ultra 3
1.19 W/kg (head)
Price
Watch Ultra 2
$ 467.00 / € 515.00
Watch Ultra 3
€ 829.00