Wear Radar

Fitbit EdgevsGarmin Forerunner 165

11d vs 7d
battery life
Garmin Forerunner 165 lasts longer
$70
price gap
Fitbit Edge cheaper
0.5 Hz
HR sampling
Fitbit Edge only — Garmin Forerunner 165 undisclosed
21g
lighter
Fitbit Edge
Fitbit Edge
Buy/Wait:good

Current model just released

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Garmin Forerunner 165
Buy/Wait:superseded

This model is no longer sold new. It has been replaced by the Garmin Forerunner 170.

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Fitbit EdgeGarmin Forerunner 165
Pricing
Starting price$179★$249
Subscriptionℹ️ Optional — $99/yrℹ️ Optional — $70/yr
Hardware
Weight18g★39g
Water resistance50m5ATM
Battery7 days11 days★
Always-on display✅★❌
GPS✅✅
Cellular❌❌
PlatformiOS & AndroidiOS & Android
TierFitness TrackerSports GPS
Buy timing
ReleasedOct 27, 2026Mar 5, 2024
Cycle advicegoodsuperseded
Deals adviceneutralclearance
Next model——

Health Sensors

Fitbit Edge only
2 exclusive sensors
ECGDetects irregular heart rhythms (AFib)
Skin TempOvernight changes linked to illness or cycle tracking
Both
3 shared
SpO2Blood oxygen saturation, tracked during sleep
Heart RateContinuous or on-demand pulse tracking
HRVHeart rate variability — stress & recovery scores
Garmin Forerunner 165 only
2 exclusive sensors
Stress TrackingStress estimate from HRV and physiological signals
Body BatteryGarmin's energy reserve — how much fuel left in the tank

Why buy each?

Fitbit Edge

Larger AMOLED display with always-on option

A 1.34" AMOLED screen, 46% larger than the Charge 6's, with an optional always-on mode and a physical button.

Built-in GPS, ECG, and an altimeter

Multi-system GPS for phone-free runs, an ECG app for AFib checks, SpO2 and skin temperature sensing, and an altimeter for elevation.

User-replaceable battery

Up to 7 days per charge, a 5-minute top-up for about a day of use, and a battery you can replace yourself when it wears out.

Garmin Forerunner 165

AMOLED display at entry-level price

The FR165 is the first Garmin entry-level running watch with an AMOLED display — dramatically more readable than the LCD it replaces.

Full Garmin running analytics

Training load, recovery time, Body Battery, HRV status, VO2 max estimation — the same analytics found on watches costing twice as much.

11 days of battery

11 days typical use and roughly 19 hours GPS — enough for most training blocks without mid-week charging.

Quick Winner

The right pick depends on what you optimize for.

For the budget
Garmin Forerunner 165 wins

$459 vs $476 over 3 years.

For battery life
Garmin Forerunner 165 wins

11 days vs 7 days battery.

For health depth
Fitbit Edge wins

5 sensors · 0.5 Hz HR sampling.

For daily comfort
Fitbit Edge wins

18g.

Bottom Line

Technical gaps
  1. Edge-only sensors: ECG, Skin Temp.
  2. Forerunner 165-only sensors: Stress Tracking, Body Battery.
  3. Weight. Edge is 21g lighter — relevant for all-day comfort and sleep.
Commercial gaps
  1. Hardware cost. Edge is $70 cheaper upfront ($179 vs $249).
Pick the Fitbit Edge if…

Anyone who wants a slim tracker with a screen, built-in GPS, and ECG rather than a full smartwatch. It suits Charge owners ready to upgrade, as long as they don't rely on Google Wallet payments or EDA stress scans. Works with both Android and iPhone via the Google Health app.

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Pick the Garmin Forerunner 165 if…

Beginner and intermediate runners who want real GPS accuracy and Garmin's analytics depth without the price of the 570 or 970. Also ideal as a first serious GPS watch for anyone moving up from a fitness tracker.

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