The Apple Watch Series 8 combines refined design with advanced health monitoring features for comprehensive daily tracking. Choosing a refurbished Apple Watch lets you access premium technology whilst making a more sustainable choice. Discover the smartwatch that adapts seamlessly to your lifestyle.
What are the key features of the Apple Watch Series 8?
- Retina LTPO OLED display: always-on screen available in 41mm and 45mm sizes
- S8 SiP chip: smooth performance for apps, notifications, and multitasking
- Temperature sensing: wrist temperature tracking for cycle monitoring and ovulation estimates
- Advanced health sensors: ECG, blood oxygen monitoring, heart rate tracking, and sleep stages
- Crash Detection: automatic emergency response in the event of a severe car accident
- Fall Detection: alerts emergency contacts if a hard fall is detected
- GPS and Cellular options: stay connected with or without your iPhone nearby
- Water resistant to 50m: suitable for swimming and water sports
- iPhone compatibility: requires iPhone 8 or later with iOS 16 or above
What are the differences between a refurbished and a used Apple Watch Series 8?
A used smartwatch is resold as-is, without professional inspection or formal warranty. In contrast, a refurbished Apple Watch Series 8 from Back Market has been thoroughly tested by trusted refurbishers following our Quality Charter. Each watch undergoes comprehensive checks covering the display, Digital Crown, side button, temperature sensor, health sensors, GPS accuracy, and water resistance seals.
All our products come with a minimum 12-month warranty and a 30-day return period. You receive reliable technology that integrates smoothly into your daily routine whilst reducing electronic waste. Opting for refurbished means accessing Apple's premium smartwatch technology with confidence and peace of mind.
Who is the Apple Watch Series 8 best for?
The Apple Watch Series 8 suits a broad range of users seeking balanced health tracking and iPhone integration:
- iPhone users: seamless ecosystem integration makes it the natural smartwatch choice for anyone with an iPhone 8 or newer
- Women tracking menstrual health: temperature sensing provides valuable cycle tracking and retrospective ovulation estimates
- Fitness enthusiasts: comprehensive workout modes, heart rate zones, and GPS tracking support regular exercise routines
- Health-conscious individuals: ECG, blood oxygen, and continuous heart rate monitoring offer insights into cardiovascular health
- Drivers and cyclists: Crash Detection with automatic emergency calling provides added safety reassurance
- Everyday users: notifications, Apple Pay, music control, and app access make daily tasks more convenient
Which Apple Watch should you choose?
Apple's smartwatch range offers models at different price points with varying capabilities. The Apple Watch SE (2nd generation) delivers essential features including heart rate monitoring, fall detection, and fitness tracking at an accessible price, ideal for first-time smartwatch users or those wanting core functionality without advanced health sensors. The Apple Watch Series 8 adds temperature sensing for cycle tracking, ECG, blood oxygen monitoring, and always-on display, making it suitable for users wanting comprehensive health insights and the latest sensors at a balanced price point.
The Apple Watch Series 9 introduces the faster S9 chip, brighter display reaching 2000 nits, and the Double Tap gesture control, whilst the Apple Watch Ultra targets extreme sports enthusiasts with its rugged titanium build, dual-frequency GPS, and specialist features like depth gauge and emergency siren. If temperature tracking and comprehensive health monitoring matter to you, the Series 8 offers excellent value. Those prioritising performance and screen brightness might prefer the Series 9, whilst everyday users may find the SE perfectly adequate.
Buy a refurbished Apple Watch Series 8 at the best price on Back Market
Back Market offers the Apple Watch Series 8 refurbished at competitive prices without compromising on quality. Each watch is tested and verified by trusted refurbishers, with a minimum 12-month warranty included. You'll benefit from excellent value on premium Apple technology whilst supporting a more circular economy.
Our professional refurbishers conduct thorough quality checks, examining everything from the always-on display to the temperature sensor and health monitoring accuracy. Choose from different cosmetic grades (Pristine, Excellent, Good) to match your budget and preferences. With fast delivery, secure payment, and responsive customer service, accessing refurbished Apple technology has never been more straightforward.
How does temperature sensing work on the Apple Watch Series 8?
The Apple Watch Series 8 includes a dual-sensor temperature system with sensors on the back crystal near your skin and underneath the display. These work together to reduce environmental bias and provide accurate wrist temperature readings whilst you sleep. The watch tracks nightly variations from your baseline temperature, which can indicate changes in your menstrual cycle, potential illness, or other physiological shifts. For cycle tracking, the watch uses this data to provide retrospective ovulation estimates, helping you understand your fertility window. Temperature readings require at least four hours of sleep wearing the watch and take about five nights to establish your baseline.
What's the difference between Apple Watch Series 8 and Series 7?
The Series 8 introduces several key improvements over the Series 7. The most significant addition is the dual temperature sensors, which enable wrist temperature tracking for cycle monitoring and ovulation estimates—a feature entirely absent from the Series 7. The Series 8 also adds Crash Detection, which uses the accelerometer and gyroscope to detect severe car accidents and automatically contact emergency services. Both watches share the same display size and brightness, S8 vs S7 chip performance (which is nearly identical), and health sensors including ECG and blood oxygen. The Series 8 includes international roaming for cellular models in more countries. If temperature tracking or Crash Detection aren't priorities, the Series 7 offers very similar functionality at better value.
Can you track ovulation with the Apple Watch Series 8?
Yes, the Apple Watch Series 8 can provide retrospective ovulation estimates using its temperature sensors. By tracking nightly wrist temperature variations throughout your cycle, the watch identifies patterns that typically occur around ovulation. These estimates appear in the Health app and can help you understand your fertile window for family planning purposes. However, it's important to note that these are estimates based on temperature shifts, not real-time ovulation detection. The feature works best with regular sleep schedules and requires wearing the watch to bed for at least five consecutive nights to establish your baseline temperature. This information is not intended to replace medical advice or FDA-cleared fertility tracking methods.
Does the Apple Watch Series 8 have always-on display?
Yes, the Apple Watch Series 8 features an always-on Retina display that remains visible even when your wrist is down. The screen intelligently dims to save power whilst keeping watch faces, complications, and workout metrics visible at a glance. This is particularly useful during exercise when you want to check your pace or heart rate without raising your wrist, or in meetings when you need to discreetly check the time. You can disable the always-on feature in settings if you prefer to extend battery life, which will make the display behave like older Apple Watch models, waking only when you raise your wrist or tap the screen.
Are refurbished Apple Watch Series 8 devices covered by warranty?
Yes, all refurbished Apple Watch Series 8 devices on Back Market come with a minimum 12-month warranty. This warranty covers functional defects in essential components including the display, Digital Crown, side button, temperature sensors, ECG sensor, blood oxygen sensor, heart rate monitor, GPS, cellular connectivity (where applicable), and water resistance seals. You also have 30 days to return your watch if it doesn't meet your expectations. Our customer service team is available to assist with any questions about your refurbished Apple Watch.