Home / Smartwatch / Comparison

Apple Apple Watch Ultra 3 vs Apple Apple Watch Series 4

Apple Apple Watch Ultra 3 ($799) vs Apple Apple Watch Series 4 ($73) — side-by-side specs, weight, pros and cons to help you pick the right smartwatch.

Apple Apple Watch Ultra 3
Apple
Apple Watch Ultra 3
$799
Best Smartwatch
Check Price →
Apple Apple Watch Series 4
Apple
Apple Watch Series 4
$73
Check Price →
Spec-by-spec
SpecApple Apple Watch Ultra 3Apple Apple Watch Series 4
Price$799$73
Weight61g36.7g
Case49mm Titanium—
Battery36h / 72h low power—
GPSDual-frequency L1+L5—
WR100m50m
DisplayAlways-on LTPO30% larger Retina OLED vs Series 3
ChipS10S4, 64-bit dual-core
Sensors—Electrical + optical heart sensor, ECG
Safety—Fall detection
Weight—36.7g (Apple published, 44mm Aluminum)
Pros & Cons

Apple Apple Watch Ultra 3

  • 36h battery life
  • Dual-frequency precision GPS
  • Satellite SOS emergency
  • Rugged titanium case
  • Best Apple Watch ever made
  • $799 very expensive
  • iPhone-only ecosystem
  • Large 49mm case size

Apple Apple Watch Series 4

  • First Apple Watch with an ECG sensor
  • Meaningfully larger display in the same case size class
  • Fall detection, a safety feature that debuted here
  • Digital Crown haptic feedback, still felt today
  • No always-on display
  • watchOS support window is closing
  • Speaker and mic are a generation behind current models
  • Battery health on a used unit is unverifiable before buying
Apple Apple Watch Series 4 is the better value at $73. Both are part of our curated smartwatch index — tap through to check current pricing.
More Smartwatch comparisons
Apple Apple Watch Ultra 3 vs Apple Apple Watch Series 11Apple Apple Watch Ultra 3 vs Apple Apple Watch SE (3rd Gen)Apple Apple Watch Ultra 3 vs Apple Apple Watch Series 10 (46mm)Apple Apple Watch Ultra 3 vs Apple Apple Watch Series 9 (45mm)Apple Apple Watch Ultra 3 vs Apple Apple Watch Series 8 (45mm)Apple Apple Watch Ultra 3 vs Apple Apple Watch Series 7 (45mm)