Wear Radar

Fitbit SensevsWHOOP 5.0

Required
sub to use
Fitbit Sense has no required sub
14d vs 6d
battery life
WHOOP 5.0 lasts longer
$161
3-yr cost gap
Fitbit Sense cheaper
26 Hz
HR sampling
WHOOP 5.0 only — Fitbit Sense undisclosed
Fitbit Sense
Buy/Wait:bad

Overdue for a refresh — no successor announced yet. Prices should be at their lowest

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WHOOP 5.0
Buy/Wait:good

Early in release cycle

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Fitbit SenseWHOOP 5.0
Pricing
Starting price$199Free (hw)
Subscriptionℹ️ Optional — $79/yr⚠️ Required — $199/yr
Year 1 total cost$278$199
Year 3 total cost$436$597
Hardware
Weight26g27g
Water resistance50m10ATM
Battery6 days14 days
Always-on display
GPS
Cellular
PlatformiOS & AndroidiOS & Android
TierSmartwatchFitness Tracker
Buy timing
ReleasedSep 28, 2022May 8, 2025
Cycle advicebadgood
Deals advicegoodneutral
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Health Sensors

Fitbit Sense only
1 exclusive sensor
EDA / StressSkin conductance sensor measuring stress responses
Both
5 shared
ECGDetects irregular heart rhythms (AFib)
SpO2Blood oxygen saturation, tracked during sleep
Heart RateContinuous or on-demand pulse tracking
Skin TempOvernight changes linked to illness or cycle tracking
HRVHeart rate variability — stress & recovery scores
WHOOP 5.0 only
4 exclusive sensors
Respiratory RateBreaths per minute overnight — flags illness or overtraining
Strain ScoreDaily cardiovascular load — how hard your body worked
Blood PressureDetects hypertension patterns — trend tracking, not clinical mmHg
VO2 MaxEstimated aerobic capacity — fitness level benchmark

Why buy each?

Fitbit Sense

Continuous EDA stress tracking

The EDA (electrodermal activity) sensor tracks physiological stress throughout the day — a feature absent from most competitors at this price.

6 months Fitbit Premium included

Comes with Fitbit Premium for advanced sleep analysis, HRV trends, stress management scores, and personalised health insights.

6-day battery, works with iPhone

Unlike Apple Watch or Galaxy Watch, Sense 2 pairs with any smartphone and runs 6 days before charging.

WHOOP 5.0

WHOOP Age — healthspan tracking

WHOOP 5.0 gives you a biological age score derived from your sleep, recovery, and training habits — showing whether your lifestyle is ageing you faster or slower than your years. Updated daily, it makes long-term health trends visible at a glance.

AI Coach — coaching, not just data

WHOOP's AI Coach learns your body's patterns and delivers personalised daily recommendations in plain language — not just what happened, but why, and what to do next. It adapts to your training load, sleep debt, and recovery trends.

Strength Trainer — weight room coverage

WHOOP 5.0 added a dedicated strength trainer that auto-detects sets, measures neuromuscular load alongside cardiovascular strain, and shows recovery demand from resistance training — a gap every previous WHOOP version had.

Quick Winner

The right pick depends on what you optimize for.

For the budget
Fitbit Sense wins

$436 vs $597 over 3 years · no required subscription.

For battery life
WHOOP 5.0 wins

14 days vs 6 days battery.

For health depth
WHOOP 5.0 wins

9 sensors · 26 Hz HR sampling.

For daily comfort
Fitbit Sense wins

26g · no required subscription.

Bottom Line

Technical gaps
  1. Sense-only sensors: EDA / Stress.
  2. 5.0-only sensors: Respiratory Rate, Strain Score, Blood Pressure, VO2 Max.
  3. Water resistance. 5.0 rates 10ATM vs 50m on Sense.
Commercial gaps
  1. Hardware cost. 5.0 is $199 cheaper upfront ($0 vs $199).
  2. Subscription. WHOOP 5.0 requires a subscription ($199/yr) — device stops working without it. Fitbit Sense has an optional subscription.
  3. 3-year total cost. Sense costs $436 vs $597 — a $161 gap.
Pick the Fitbit Sense if…

Health-conscious users on any platform who want continuous stress monitoring (EDA sensor), ECG, and Fitbit's deep wellness coaching — without paying Galaxy Watch or Apple Watch prices. Particularly strong for iPhone users who want serious health tracking at under $250.

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Pick the WHOOP 5.0 if…

Athletes, coaches, and fitness-obsessed users who want deep recovery and sleep data without screen distractions. WHOOP suits those who train hard and want to understand whether their body is ready to push. Not for casual users or those who want smartwatch features like notifications or GPS.

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