Apple Watch Ultra 3 vs Apple Watch Series 3 GPS Smartwatch comparison
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| key specs |
| Display Size | 49mm | 42mm |
| Compatible OS | iOS 26 | iOS 10 and Above |
| Dial Shape | Square | Rectangle |
| Display Type | OLED Retina | OLED Retina |
| Ideal For | Unisex | Unisex |
| Strap Colour | - | Space Grey |
| Strap Material | - | Silicone |
| general |
| Brand | Apple | Apple |
| Model | Watch Ultra 3 | Watch Series 3 GPS Smartwatch |
| Release date | September 9, 2025 | - |
| Model Name | Watch Ultra 3 | Watch Series 3 GPS |
| Dial Colour | Natural, Black | Grey |
| Dial Shape | Square | Rectangle |
| Size | Large | Regular |
| Touchscreen | Yes | Yes |
| Interchangeable Strap | Yes | - |
| Water Resistant | WR100 | Yes |
| Water Resistance Depth | 100 | 50 m |
| Dial Material | Titanium | Aluminum |
| Ideal For | Unisex | Unisex |
| Model Number | - | MR362HN/A |
| Strap Material | - | Silicone |
| Usage | - | Fitness & Outdoor |
| Strap Colour | - | Space Grey |
| dimensions |
| Width | 44 | - |
| Height | 49 | - |
| Thickness | 12 | - |
| Weight (g) | 61.60 | - |
| product details |
| Compatible Device | iPhone 11 and above | Iphone 5, 5C, 5S, Se, 6, 6 Plus, 6S, 6S Plus, 7 , 7 Plus, 8, 8 Plus, X And Ios 10 Or Later |
| Battery Life | Up to 24 hours | Upto 18 hours |
| Charger Type | Wireless | - |
| Sensor | - | Barometric Altimeter, Heart Rate Sensor, Accelerometer, Gyroscope, Ambient Light Sensor, Built-In Gps And Glonass |
| Notification | - | Messages, Calendar, Mail |
| Battery Type | - | Lithium Ion |
| Charge Time | - | 90 min |
| Rechargeable Battery | - | Yes |
| connectivity features |
| Call Function | Yes | No |
| Bluetooth | Yes | Yes |
| Bluetooth Version | 5.3 | v4.2 |
| Wi-Fi | Yes | Yes |
| GPS | Yes | Yes |
| Messaging Support | Yes | - |
| Other Connectivity Features | Satellite Emergency SoS | Wi-Fi (802.11B/G/N) |
| platform and storage features |
| Operating System | watchOS 26 | 4 |
| Compatible Operating System | iOS 26 | iOS 10 and Above |
| Processor Name | Apple S11 | S3 Dual Core Processor |
| Internal Memory | 64GB | 8 GB |
| camera and display features |
| Display Size | 49mm | 42mm |
| Display Type | OLED Retina | OLED Retina |
| Other Display Features | Always-On Display | Ion-X (Strengthened Glass), Support Force Touch |
| Display Resolution | - | 312 x 390 Pixels |
| Scratch Resistant | - | Yes |
| fitness and watch functions |
| Step Count | Yes | Yes |
| Calorie Count | Yes | Yes |
| Heart Rate Monitor | Yes | Yes |
| Compass | Yes | - |
| Calendar | Yes | Yes |
| Alarm Clock | Yes | Yes |
| Date & Time Display | Yes | Yes |
| Number of Buttons | 3 | 2 |
| Altimeter | - | Yes |
| Other Fitness Features | - | Built In Fitness Tracker: Steps Count, Distance And Calories Burned |
| audio and video features |
| Speaker | Yes | - |
| Gesture Control | Yes | - |
| Microphone | Yes | - |
| Voice Control | Yes | - |
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