Wear Radar

Garmin Forerunner 165vsGarmin Forerunner 965

23d vs 11d
battery life
Garmin Forerunner 965 lasts longer
$350
price gap
Garmin Forerunner 165 cheaper
14g
lighter
Garmin Forerunner 165
2
more health sensors
Garmin Forerunner 965
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Buy/Wait:superseded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 It has been replaced by the Garmin Forerunner 170.

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Garmin Forerunner 965
Buy/Wait:superseded

This model is no longer sold new. It has been replaced by the Garmin Forerunner 970.

Full details →
Garmin Forerunner 165Garmin Forerunner 965
Pricing
Starting price$249$599
Subscriptionℹ️ Optional — $70/yrℹ️ Optional — $70/yr
Hardware
Weight39g53g
Water resistance5ATM5ATM
Battery11 days23 days
Always-on display
GPS
Cellular
PlatformiOS & AndroidiOS & Android
TierSports GPSSports GPS
Buy timing
ReleasedMar 5, 2024Mar 1, 2023
Cycle advicesupersededsuperseded
Deals adviceclearanceclearance
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Health Sensors

Garmin Forerunner 165 only
No exclusive sensors
Both
5 shared
Heart RateContinuous or on-demand pulse tracking
SpO2Blood oxygen saturation, tracked during sleep
HRVHeart rate variability — stress & recovery scores
Stress TrackingStress estimate from HRV and physiological signals
Body BatteryGarmin's energy reserve — how much fuel left in the tank
Garmin Forerunner 965 only
2 exclusive sensors
Training ReadinessDaily recovery score — how ready you are to perform
Running DynamicsCadence, ground contact time, stride length, vertical oscillation

Why buy each?

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.

Garmin Forerunner 965

Full color topographic maps

Turn-by-turn navigation on full TopoActive maps — essential for trail running and mountain racing.

Running dynamics metrics

Cadence, stride length, vertical oscillation, ground contact time, and running power.

23-day battery and 31h GPS

Enough for week-long trail ultras without a charge.

Quick Winner

The right pick depends on what you optimize for.

For the budget
Garmin Forerunner 165 wins

$459 vs $809 over 3 years.

For battery life
Garmin Forerunner 965 wins

23 days vs 11 days battery.

For health depth
Garmin Forerunner 965 wins

7 sensors.

For daily comfort
Garmin Forerunner 165 wins

39g.

Bottom Line

Technical gaps
  1. Forerunner 965-only sensors: Training Readiness, Running Dynamics.
  2. Weight. Forerunner 165 is 14g lighter — relevant for all-day comfort and sleep.
Commercial gaps
  1. Hardware cost. Forerunner 165 is $350 cheaper upfront ($249 vs $599).
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 265 or 965. Also ideal as a first serious GPS watch for anyone moving up from a fitness tracker.

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Pick the Garmin Forerunner 965 if…

Competitive runners, triathletes, and ultramarathon runners who want full maps, running dynamics, and premium build.

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