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:bad

Late in cycle — a new model is likely coming

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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Buy/Wait:superseded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 It has been replaced by the Garmin Forerunner 970.

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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 advicebadsuperseded
Deals advicegoodclearance
Next modelGarmin Forerunner 170 (Expected March 2026)

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 · no required subscription.

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 · no required subscription.

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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