Skip to content
specpair

Fitbit Inspire 3 vs Samsung Galaxy Watch Ultra

Updated Apr 2026smartwatches
Fitbit Inspire 3
Fitbit
Fitbit Inspire 3
$99
7.8/10
VS

The Verdict

Fitbit Inspire 3 and Samsung Galaxy Watch Ultra serve vastly different user needs and budgets. The Inspire 3 is a lightweight, affordable fitness tracker with essential health monitoring: heart rate, SpO2, skin temperature, and sleep tracking, wrapped in a 0.73-inch AMOLED display. Its 10-day battery life is practical for casual users who prioritize simplicity and cost. The Galaxy Watch Ultra is a premium sports smartwatch built for serious athletes, featuring a titanium Grade 4 body rated for extreme durability (MIL-STD-810H certified), larger 1.5-inch Super AMOLED display with 3000-nit brightness, and comprehensive connectivity including GPS, NFC, WiFi, and cellular. Its Exynos W1000 processor handles complex apps, while 60-hour battery life in power-saving mode supports extended adventures. Health-wise, both track standard metrics, though Galaxy Watch Ultra adds ECG capability. At $99 versus $649.99, the Inspire 3 excels for budget-conscious fitness enthusiasts wanting basic tracking and incredible battery life. The Galaxy Watch Ultra justifies its premium for those needing comprehensive sports features, onboard GPS navigation, independent cellular connectivity, and rugged construction. These aren't competitors but rather products for different spending tiers and use cases.

ValueInspire 3
BatteryInspire 3
DisplayWatch Ultra
SoftwareWatch Ultra
health_trackingWatch Ultra

Who Should Buy

Buy the Fitbit Inspire 3 if…

  • 10-day battery life — charge once and forget for well over a week
  • Color AMOLED display is a huge upgrade over Inspire 2's grayscale
  • Ultra-lightweight at 20 g — perfect for sleep tracking

Buy the Samsung Galaxy Watch Ultra if…

  • Premium titanium build with 10ATM water resistance and MIL-STD durability
  • Bright 3000-nit Super AMOLED display with sapphire crystal protection
  • Dual-frequency GPS (L1 + L5) for precise outdoor tracking

Category Scores

Fitbit Inspire 3
Samsung Galaxy Watch Ultra
Value
9.2
7.5
Battery
8.5
8.2
Display
6.5
9.2
Software
6.8
9.0
health_tracking
7.5
8.8

Pros & Cons

Fitbit Inspire 3

Pros

  • 10-day battery life — charge once and forget for well over a week
  • Color AMOLED display is a huge upgrade over Inspire 2's grayscale
  • Ultra-lightweight at 20 g — perfect for sleep tracking
  • SpO2 and skin temperature sensors at just $99
  • 5ATM water resistance for swimming

Cons

  • No built-in GPS — relies on phone GPS for outdoor tracking
  • No NFC — cannot use Fitbit Pay
  • Tiny screen limits notification readability
  • Best health insights locked behind Fitbit Premium subscription
  • No always-on display option

Samsung Galaxy Watch Ultra

Pros

  • Premium titanium build with 10ATM water resistance and MIL-STD durability
  • Bright 3000-nit Super AMOLED display with sapphire crystal protection
  • Dual-frequency GPS (L1 + L5) for precise outdoor tracking
  • Big 590 mAh battery delivers up to 100 hours in Power Saving mode
  • Customizable Quick Button for fast access to workouts and apps

Cons

  • Very expensive at $649 — Samsung's priciest watch yet
  • Only one 47mm size, too large for smaller wrists
  • BioActive sensor and BP/ECG features require Samsung phone
  • Design closely mimics Apple Watch Ultra
  • Limited third-party app ecosystem versus Apple Watch

Full Specifications

SpecFitbit Inspire 3Samsung Galaxy Watch Ultra
SoftwareFitbit OSWear OS 5 with One UI Watch 6
Body
Weight20 g60.5 g
Case materialPlastic resinTitanium Grade 4
Water resistance5ATM10ATM + IP68 + MIL-STD-810H
Health & Sensors
ECG
SpO₂
Skin temperature
Heart rate
Sleep tracking
Battery
Battery lifeUp to 10 daysUp to 60 hours in Power Saving mode (590 mAh)
Display
Size0.73 inches47mm (1.5")
TypeAMOLEDSuper AMOLED with Sapphire Crystal glass, up to 3000 nits
Always-on display
Resolution256 x 124480 x 480
Processor
ChipsetFitbit custom processorSamsung Exynos W1000 (3nm, 5-core)
RAM2 GB
Connectivity
GPS
NFC
Wi-Fi
Cellular
Bluetooth5.05.3

Want to compare a third product?

Add another product for a 3-way comparison.

This comparison is based on verified manufacturer specifications covering display, performance, camera, battery, and build quality. Scores are generated by analyzing specs across weighted categories on a 10-point scale. Learn more about our methodology.

Explore more in smartwatches, see all Fitbit products or all Samsung products. View full details for the Fitbit Inspire 3 or the Samsung Galaxy Watch Ultra.