| key specs | 
| Display Size | 49mm | 38mm | 
| Compatible OS | iOS | iOS 10 and Above | 
| Dial Shape | Rectangle | Rectangle | 
| Display Type | OLED Retina | OLED Retina | 
| Ideal For | Unisex | Unisex | 
| Strap Colour | - | Midnight Blue | 
| Strap Material | - | Stainless Steel | 
| general | 
| Brand | Apple | Apple | 
| Model | Watch Ultra 2 | Watch Series 2 Smartwatch | 
| Release date | September 12, 2023 | - | 
| Model Name | Watch Ultra 2 | Watch Series 2 | 
| Dial Shape | Rectangle | Rectangle | 
| Size | Large | Regular | 
| Touchscreen | Yes | Yes | 
| Water Resistant | Yes | Yes | 
| Water Resistance Depth | 100m | 50 m | 
| Usage | Fitness & Outdoor | Fitness & Outdoor | 
| Ideal For | Unisex | Unisex | 
| Model Number | - | MQ132HN/A | 
| Strap Material | - | Stainless Steel | 
| Dial Material | - | Aluminum | 
| Strap Colour | - | Midnight Blue | 
| Dial Colour | - | Black | 
| product details | 
| Maximum Operating Altitude | 9000 | - | 
| Sensor | Compass, Always-On Altimeter, heart rate sensor, Accelerometer, Gyroscope, and Ambient light sensor | Heart Rate Sensor, Accelerometer, Gyroscope, Ambient Light Sensor | 
| Compatible Device | iOS | Iphone 5, 5C, 5S, Se, 6, 6 Plus, 6S, 6S Plus, 7 Or 7 Plus | 
| Notification | Yes | Messages, Calendar, Activity, Phone, Mail | 
| Battery Type | Lithium Ion | - | 
| Battery Life | 36 Hours | 18 hours | 
| Rechargeable Battery | Yes | Yes | 
| Charge Time | - | 90 min | 
| Other Features | - | Ceramic Back, Digital Crown | 
| connectivity features | 
| Call Function | Yes | No | 
| Bluetooth | Yes | Yes | 
| Wi-Fi | Yes | Yes | 
| GPS | Yes | Yes | 
| Call Features | International Emergency Calling | - | 
| Other Connectivity Features | Emergency SOS | Wi-Fi (802.11B/G/N) | 
| Bluetooth Version | - | v4.0 | 
| platform and storage features | 
| Operating System | watchOS 10 | 3 | 
| Compatible Operating System | iOS | iOS 10 and Above | 
| Processor Name | S9 SiP | S2 Dual Core Processor | 
| camera and display features | 
| Display Size | 49mm | 38mm | 
| Display Type | OLED Retina | OLED Retina | 
| Backlight Display | Yes | - | 
| Other Display Features | LTPO OLED Always-On Retina display | Brighter Oled Retina Display With Force Touch (1000 Nits) | 
| Display Resolution | - | 272 x 340 pixels | 
| fitness and watch functions | 
| Step Count | Yes | - | 
| Calorie Count | Yes | Yes | 
| Heart Rate Monitor | Yes | Yes | 
| Altimeter | Yes | - | 
| Compass | Yes | - | 
| Calendar | Yes | Yes | 
| Alarm Clock | Yes | Yes | 
| Date & Time Display | Yes | Yes | 
| Language | English | - | 
| Other Fitness Features | Blood Oxgen Sensor, ECG sensor | Activity Tracking With Three Rings (Stand, Move, Exercise), Workout App (Elapsed Time, Distance, Calories, Pace And Speed, Goals, Progress Updates, Workout Summary), Strava Cycling, Activity History | 
| audio and video features | 
| Speaker | Yes | - | 
| Microphone | Yes | - | 
| dimensions | 
| Width | - | 33.3 | 
| Height | - | 38.6 | 
| Thickness | - | 11.4 mm |