Apple Watch Series 8 Aluminum vs. Apple Watch Ultra: The Ultimate Showdown

Apple's smartwatch lineup just got a serious upgrade with the introduction of the Apple Watch Ultra. But with the already popular Series 8 still available, which one reigns supreme? This comprehensive comparison will help you decide which Apple Watch best suits your needs and budget.
Phones Images

🏆 Quick Verdict

The Apple Watch Ultra is built for extreme adventurers and those needing rugged durability and extended battery. The Series 8 Aluminum offers a more refined, everyday experience with a sleek design and excellent health tracking features, making it a better value for most users.

PHONES
Phone Names Apple Watch Series 8 Aluminum Apple Watch Ultra
Network
2G bandsGSM 850 / 900 / 1800 / 1900GSM 850 / 900 / 1800 / 1900
3G bandsHSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 - International, China, HKHSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 - International, China, HK
4G bands1, 2, 3, 4, 5, 6, 7, 8, 18, 19, 20, 25, 26, 28, 39, 40, 41, 66 - International, China, HK1, 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, 6, 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
Announced2022, September 072022, September 07
StatusAvailable. Released 2022, September 16Available. Released 2022, September 23
Body
BuildGlass front, ceramic/sapphire crystal back, aluminum frameSapphire crystal front, ceramic/sapphire crystal back, titanium frame
Dimensions45 x 38 x 10.7 mm (1.77 x 1.50 x 0.42 in)49 x 44 x 14.4 mm (1.93 x 1.73 x 0.57 in)
SIMeSIMeSIM
Weight32 g (41mm), 38.8 g (45mm) (1.13 oz)61.3 g (2.15 oz)
 IP6X certified 50m water resistant ECG certified (region dependent SW application; HW available on all models)IP6X certified 100m water resistant (WR100) 40m swimproof/diving (EN13319) MIL-STD 810H certified ECG certified (region dependent SW application; HW available on all models)
Display
ProtectionIon-X strengthened glassSapphire crystal glass
Resolution484 x 396 pixels (~326 ppi density)502 x 410 pixels (~338 ppi density)
Size1.9 inches1.92 inches
TypeRetina LTPO OLED, 1000 nits (peak)Retina LTPO OLED, 2000 nits (peak)
 Always-on displayAlways-on display
Platform
CPUDual-coreDual-core
ChipsetApple S8Apple S8
GPUPowerVRPowerVR
OSwatchOS 9.0, upgradable to watchOS 26.1watchOS 9.0, upgradable to watchOS 26.1
Memory
Card slotNoNo
Internal32GB 1GB RAM32GB
 eMMC 5.1-
Sound
3.5mm jack NoNo
35mm jackNoNo
Loudspeaker YesYes, with dual speakers (86-decibel)
Comms
Bluetooth5.3, A2DP, LE5.3, A2DP, LE
NFCYesYes
PositioningGPS, GLONASS, GALILEO, QZSS, BDSGPS (L1+L5), GLONASS, GALILEO, 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, VO2max, temperature (body)Accelerometer, gyro, heart rate, barometer, always-on altimeter, compass, SpO2, VO2max, temperature (body), temperature (water)
 Temperature sensing (0.01˚ accuracy) Natural language commands and dictation (talking mode) Ultra Wideband (UWB) supportTemperature sensing (0.01˚ accuracy) Depth gauge (±1m accuracy) Natural language commands and dictation (talking mode) Ultra Wideband (UWB) support
Battery
ChargingWireless, 0-80% in 45 minWireless, 0-80% in 60 min
TypeLi-Ion 308 mAhLi-Ion 542 mAh
Misc
ColorsMidnight, Starlight, Silver, RedTitanium
ModelsA2773, A2775, A2772, A2774, A2857, A2858, A2770, A2771, watch6,14, watch6,15, watch6,16, watch6,17A2684, A2622, A2859, watch6,18
PriceAbout 340 EURAbout 550 EUR
SAR0.31 W/kg (head)     0.55 W/kg (body)-
SAR EU0.31 W/kg (head)     0.55 W/kg (body)0.35 W/kg (head)     0.60 W/kg (body)
Camera
 NoNo

Apple Watch Series 8 Aluminum

  • Sleek and stylish design
  • Excellent health tracking features
  • More affordable
  • Comfortable for everyday wear

  • Shorter battery life
  • Less durable than Ultra
  • Smaller display

Apple Watch Ultra

  • Exceptional battery life
  • Rugged and durable design
  • Larger, brighter display
  • Specialized features (depth gauge, siren)
  • Action button for quick access

  • Higher price
  • Larger and heavier
  • Less refined design for everyday wear

Display Comparison

The Series 8 boasts a vibrant, always-on Retina display, perfect for everyday use. The Ultra features a larger, brighter, and more durable display with a flat sapphire crystal, offering superior visibility in direct sunlight and enhanced protection against scratches and impacts. The Ultra's Action button provides quick access to key features.

Camera Comparison

Neither watch has a camera. This remains a consistent design choice for Apple Watches.

Performance

Both watches share the Apple S8 chip, delivering snappy performance for apps and navigation. However, the Ultra's larger size allows for better heat dissipation during intense workouts, potentially maintaining peak performance for longer periods. Real-world usage feels virtually identical.

Battery Life

The Series 8 offers all-day battery life, typically lasting around 18 hours. The Ultra significantly improves upon this, providing up to 36 hours of battery life in normal mode and up to 60 hours in low-power mode, making it a clear winner for extended adventures.

Buying Guide

The Apple Watch Series 8 Aluminum is ideal for everyday users who prioritize style, a comfortable fit, and comprehensive health tracking. The Apple Watch Ultra is for outdoor enthusiasts, athletes, and anyone needing a durable, feature-rich smartwatch with exceptional battery life and specialized functions like depth gauge and emergency siren.

Frequently Asked Questions

❓ Is the Apple Watch Ultra worth the extra cost?
If you're a serious athlete, outdoor adventurer, or need exceptional battery life and durability, the Ultra is a worthwhile investment. Otherwise, the Series 8 offers excellent value for everyday use.
❓ What are the key differences between the Series 8 and Ultra?
The Ultra boasts a larger, brighter display, significantly longer battery life, a more rugged design, and specialized features like a depth gauge and emergency siren. The Series 8 is more compact, stylish, and affordable.