Apple Watch Series 7 Edition vs. Series 8 Aluminum: A Detailed Comparison

The Apple Watch remains the gold standard for smartwatches, but choosing the right model can be tricky. We're pitting the Apple Watch Series 7 Edition against the Series 8 Aluminum to help you decide which one best suits your needs and budget. Let's dive into a comprehensive comparison.
Phones Images

🏆 Quick Verdict

The Series 8 Aluminum offers a slight edge with its temperature sensing and improved crash detection, alongside a newer chipset. However, the Series 7 Edition remains a fantastic option, especially if you can find it at a discounted price. Ultimately, the Series 8 is a worthwhile upgrade for those seeking the latest features.

PHONES
Phone Names Apple Watch Edition Series 7 Apple Watch Series 8 Aluminum
Network
2G bandsGSM 850 / 900 / 1800 / 1900GSM 850 / 900 / 1800 / 1900
3G bandsHSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 - InternationalHSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 - International, China, HK
4G bands1, 2, 3, 4, 5, 7, 8, 18, 19, 20, 25, 26, 28, 39, 40, 41, 66 - International1, 2, 3, 4, 5, 6, 7, 8, 18, 19, 20, 25, 26, 28, 39, 40, 41, 66 - International, China, HK
SpeedHSPA, LTEHSPA, LTE
TechnologyGSM / HSPA / LTEGSM / HSPA / LTE
 1, 2, 3, 4, 5, 7, 12, 13, 14, 17, 18, 19, 25, 26, 39, 40, 41, 66 - USA, LATAM, Canada1, 2, 3, 4, 5, 6, 7, 12, 13, 14, 17, 18, 19, 25, 26, 39, 40, 41, 66 - USA, LATAM, Canada
Launch
Announced2021, September 142022, September 07
StatusAvailable. Released 2021, October 15Available. Released 2022, September 16
Body
BuildSapphire crystal front, ceramic/sapphire crystal back, titanium frameGlass front, ceramic/sapphire crystal back, aluminum frame
Dimensions45 x 38 x 10.7 mm (1.77 x 1.50 x 0.42 in)45 x 38 x 10.7 mm (1.77 x 1.50 x 0.42 in)
SIMeSIMeSIM
Weight37 g (41mm), 45.1 g (45mm) (1.31 oz)32 g (41mm), 38.8 g (45mm) (1.13 oz)
 IP6X certified 50m water resistant ECG certified (region dependent SW application; HW available on all models)IP6X certified 50m water resistant ECG certified (region dependent SW application; HW available on all models)
Display
ProtectionSapphire crystal glassIon-X strengthened glass
Resolution484 x 396 pixels (~326 ppi density)484 x 396 pixels (~326 ppi density)
Size1.9 inches1.9 inches
TypeRetina LTPO OLED, 1000 nits (peak)Retina LTPO OLED, 1000 nits (peak)
 Always-on displayAlways-on display
Platform
CPUDual-coreDual-core
ChipsetApple S7Apple S8
GPUPowerVRPowerVR
OSwatchOS 8.0, upgradable to watchOS 26.1watchOS 9.0, upgradable to watchOS 26.1
Memory
Card slotNoNo
Internal32GB 1GB RAM32GB 1GB RAM
 -eMMC 5.1
Sound
3.5mm jack NoNo
35mm jackNoNo
Loudspeaker YesYes
Comms
Bluetooth5.0, A2DP, LE5.3, A2DP, LE
NFCYesYes
PositioningGPS, GLONASS, GALILEO, QZSS, BDSGPS, GLONASS, GALILEO, QZSS, BDS
RadioNoNo
USBNoNo
WLANWi-Fi 802.11 b/g/n, dual-bandWi-Fi 802.11 b/g/n, dual-band
Features
SensorsAccelerometer, gyro, heart rate, barometer, always-on altimeter, compass, SpO2, VO2maxAccelerometer, gyro, heart rate, barometer, always-on altimeter, compass, SpO2, VO2max, temperature (body)
 Natural language commands and dictation (talking mode) Ultra Wideband (UWB) supportTemperature sensing (0.01˚ accuracy) Natural language commands and dictation (talking mode) Ultra Wideband (UWB) support
Battery
ChargingWireless, 0-80% in 45 minWireless, 0-80% in 45 min
TypeLi-Ion 309 mAh (1.19 Wh)Li-Ion 308 mAh
Misc
ColorsSpace Black, TitaniumMidnight, Starlight, Silver, Red
ModelsA2475, A2476, A2477, A2478, watch6,8, watch6,9A2773, A2775, A2772, A2774, A2857, A2858, A2770, A2771, watch6,14, watch6,15, watch6,16, watch6,17
PriceAbout 830 EURAbout 340 EUR
SAR1.10 W/kg (head)0.31 W/kg (head)     0.55 W/kg (body)
SAR EU0.70 W/kg (head)     1.50 W/kg (body)0.31 W/kg (head)     0.55 W/kg (body)
Camera
 NoNo

Apple Watch Edition Series 7

  • Premium Design & Materials
  • Excellent Display
  • Fast Performance
  • Mature watchOS ecosystem

  • Older Chipset
  • Lacks Temperature Sensing
  • No Crash Detection

Apple Watch Series 8 Aluminum

  • Latest S8 Chipset
  • Temperature Sensing for Cycle Tracking
  • Crash Detection
  • Improved Battery Optimization
  • Slightly Brighter Display

  • Higher Price
  • Marginal Performance Improvement over Series 7

Display Comparison

Both watches feature stunning OLED displays with excellent brightness and clarity. The Series 8 has a slightly brighter display, but the difference is minimal in most real-world scenarios. Both offer Always-On display functionality.

Camera Comparison

Neither watch has a dedicated camera. This remains a consistent feature across Apple Watch models.

Performance

The Series 8's S8 chip provides a marginal performance boost over the S7 in the Series 7. App loading times are slightly faster, and overall responsiveness feels a bit smoother. However, both watches are incredibly fast and responsive for everyday tasks.

Battery Life

Both offer similar battery life, typically lasting around 18 hours with moderate use. The 0-80% charging time is identical at 45 minutes. Battery optimization on the Series 8 is slightly improved, potentially extending usage by a small margin.

Buying Guide

The Apple Watch Series 7 Edition is ideal for users who prioritize a premium design and don't need the latest health features like temperature sensing. It's a great value if you find it on sale. The Apple Watch Series 8 Aluminum is best for those who want the most up-to-date technology, including temperature tracking for cycle monitoring and enhanced safety features like crash detection.

Frequently Asked Questions

❓ Is the Apple Watch Series 8 worth upgrading from a Series 7?
It depends. If you value temperature sensing for cycle tracking or the added safety of crash detection, then yes. Otherwise, the Series 7 remains a capable smartwatch.
❓ Which Apple Watch has better battery life?
Both offer similar battery life, around 18 hours with moderate use. The Series 8 has slightly improved optimization.