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- Apple Watch Ultra 4 vs Apple Watch Series 6 GPS + Cellular
Apple Watch Ultra 4 vs Apple Watch Series 6 GPS + Cellular comparison
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| key specs | ||||
| Display Size | 49mm | 40mm | ||
| Dial Shape | Rectangle | Rectangle | ||
| Display Type | OLED Retina | OLED Retina | ||
| Ideal For | Unisex | Unisex | ||
| Strap Colour | - | Silver, Gold, Space Grey, Pink, Blue, Red, Brown | ||
| general | ||||
| Brand | Apple | Apple | ||
| Model | Watch Ultra 4 | Watch Series 6 GPS + Cellular | ||
| Release date | September 9, 2026 | September 16, 2020 | ||
| Dial Shape | Rectangle | Rectangle | ||
| Usage | Regular, Sports | Fitness & Outdoor | ||
| Ideal For | Unisex | Unisex | ||
| Model Name | - | Watch Series 6 GPS + Cellular | ||
| Dial Colour | - | Silver, Grey, Gold, Blue, PRODUCT RED | ||
| Strap Colour | - | Silver, Gold, Space Grey, Pink, Blue, Red, Brown | ||
| Size | - | Regular | ||
| Touchscreen | - | Yes | ||
| Water Resistant | - | Yes | ||
| Water Resistance Depth | - | 50m | ||
| Dial Material | - | Aluminium, Stainless Steel, Titanium | ||
| product details | ||||
| Sensor | Health Sensing System, optical and electrical heart sensors, blood oxygen sensor, temperature sensor, depth gauge, water temperature sensor, compass, always-on altimeter, high-g accelerometer, gyroscope, ambient light sensor | Compass, Always-On Altimeter, second-gen optical heart rate sensor, Accelerometer, Gyroscope, and Ambient light sensor | ||
| Battery Type | Rechargeable lithium-ion | Lithium Ion | ||
| Battery Life | up to 50 hours | Up to 18 hours | ||
| Charger Type | Magnetic charging port | - | ||
| Rechargeable Battery | Yes | Yes | ||
| Notification | - | Yes | ||
| connectivity features | ||||
| Call Function | Yes | Yes | ||
| Bluetooth | Yes | Yes | ||
| Wi-Fi | Yes | Yes | ||
| GPS | Yes | Yes | ||
| Bluetooth Version | - | 5.0 | ||
| Call Features | - | International Emergency Calling | ||
| Other Connectivity Features | - | Emergency SOS | ||
| platform and storage features | ||||
| Operating System | watchOS 27 | watchOS 7 | ||
| Processor Name | Apple S11 chip | S6 with 64-bit Dual Core Processor | ||
| Internal Memory | 64GB | 32GB | ||
| Number of Cores | - | dual-core | ||
| camera and display features | ||||
| Display Resolution | 422 × 514 | 324x394 pixels | ||
| Display Size | 49mm | 40mm | ||
| Display Type | OLED Retina | OLED Retina | ||
| Scratch Resistant | Sapphire crystal | - | ||
| Other Display Features | 3000 nits peak brightness, 1 nit minimum brightness, 1Hz refresh rate, 326ppi, Night Mode | LTPO OLED Always-On Retina display (1000 nits brightness) | ||
| Backlight Display | - | Yes | ||
| fitness and watch functions | ||||
| Step Count | Yes | Yes | ||
| Calorie Count | Yes | Yes | ||
| Heart Rate Monitor | Yes | Yes | ||
| Altimeter | Yes | Yes | ||
| Compass | Yes | Yes | ||
| Calendar | Yes | Yes | ||
| Alarm Clock | Yes | Yes | ||
| Chronograph | Yes | - | ||
| Date & Time Display | Yes | Yes | ||
| Language | English | English | ||
| Number of Buttons | 3 | - | ||
| Other Fitness Features | Readiness score, HRV, heart rate zones, Training Load, Workout Effort, VO2 max, custom workouts, race route, Pacer, cadence, stride length, running power, multisport workouts, cycling metrics, swimming metrics, diving, depth gauge, water temperature, GPS, elevation tracking, Backtrack and offline maps | Blood Oxgen Sensor, ECG sensor | ||
| audio and video features | ||||
| Speaker | Yes | Yes | ||
| Gesture Control | Yes | - | ||
| Microphone | Yes | Yes | ||
| Voice Control | Siri AI | - | ||
| ratings | ||||
| Overall NDTV Rating | - | Read Review | ||
| Design and comfort Rating | - | |||
| Tracking accuracy Rating | - | |||
| Companion app Rating | - | |||
| Software and ecosystem Rating | - | |||
| Battery life Rating | - | |||
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