Wear Radar

Fitbit EdgevsGarmin Forerunner 170

10d vs 7d
battery life
Garmin Forerunner 170 lasts longer
$120
price gap
Fitbit Edge cheaper
0.5 Hz
HR sampling
Fitbit Edge only — Garmin Forerunner 170 undisclosed
25g
lighter
Fitbit Edge
Fitbit Edge
Buy/Wait:good

Current model just released

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Garmin Forerunner 170
Buy/Wait:good

Early in release cycle

Full details →
Fitbit EdgeGarmin Forerunner 170
Pricing
Starting price$179★$299
Subscriptionℹ️ Optional — $99/yrℹ️ Optional — $70/yr
Hardware
Weight18g★43g
Water resistance50m5ATM
Battery7 days10 days★
Always-on display✅★❌
GPS✅✅
Cellular❌❌
PlatformiOS & AndroidiOS & Android
TierFitness TrackerSports GPS
Buy timing
ReleasedOct 27, 2026May 15, 2026
Cycle advicegoodgood
Deals adviceneutralgood★
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 170 only
3 exclusive sensors
Stress TrackingStress estimate from HRV and physiological signals
Body BatteryGarmin's energy reserve — how much fuel left in the tank
Training ReadinessDaily recovery score — how ready you are to perform

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 170

Training Readiness at entry level

Training Readiness, full Training Status, and wrist-based running power — analytics previously reserved for Garmin's mid-range — now on a $299.99 watch.

AMOLED display and 10-day battery

A bright 1.2" AMOLED touchscreen with a traditional 5-button design, up to 10 days of battery in smartwatch mode and around 17 hours of GPS.

Garmin Pay and 80+ sports apps

Contactless payments arrive on the entry Forerunner for the first time, alongside 80+ built-in sports apps and Garmin Coach adaptive training plans.

Quick Winner

The right pick depends on what you optimize for.

For the budget
Fitbit Edge wins

$476 vs $509 over 3 years.

For battery life
Garmin Forerunner 170 wins

10 days vs 7 days battery.

For health depth
Garmin Forerunner 170 wins

6 sensors.

For daily comfort
Fitbit Edge wins

18g.

Bottom Line

Technical gaps
  1. Edge-only sensors: ECG, Skin Temp.
  2. Forerunner 170-only sensors: Stress Tracking, Body Battery, Training Readiness.
  3. Weight. Edge is 25g lighter — relevant for all-day comfort and sleep.
Commercial gaps
  1. Hardware cost. Edge is $120 cheaper upfront ($179 vs $299).
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 170 if…

Beginner and intermediate runners who want real GPS accuracy and Garmin's analytics depth without the price of the 570 or 970. With Training Readiness and running power now included, it closes much of the gap to Garmin's mid-range — the default first serious GPS watch.

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