Apple Watch UltravsGarmin Forerunner 965

23d vs 1.75d

battery life

Garmin Forerunner 965 lasts longer

$200

price gap

Garmin Forerunner 965 cheaper

more health sensors

Apple Watch Ultra

Buy/Wait:neutral

Reaching maturity, next model expected soon

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Buy/Wait:superseded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 It has been replaced by the Garmin Forerunner 970.

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	Apple Watch Ultra	Garmin Forerunner 965
Pricing
Starting price	$799	$599★
Subscription	✓ None	ℹ️ Optional — $70/yr
Hardware
Weight	62g	53g★
Water resistance	100m★	5ATM
Battery	1.75 days	23 days★
Always-on display	✅★	❌
GPS	✅	✅
Cellular	✅★	❌
Platform	iOS only	iOS & Android
Tier	Sports GPS	Sports GPS
Buy timing
Released	Sep 19, 2025	Mar 1, 2023
Cycle advice	neutral	superseded
Deals advice	neutral	clearance
Next model	Apple Watch Ultra 4 (Expected fall 2026)	—

Health Sensors

Apple Watch Ultra only

9 exclusive sensors

Irregular RhythmBackground optical check for irregular heart rhythms

Fall DetectionAuto-calls emergency services after a hard fall

Crash DetectionDetects vehicle crashes and alerts emergency contacts

Sleep ApneaFDA-cleared detection of signs of moderate to severe sleep apnea

ECGDetects irregular heart rhythms (AFib)

Skin TempOvernight changes linked to illness or cycle tracking

Blood PressureDetects hypertension patterns — trend tracking, not clinical mmHg

Depth GaugeMeasures water depth — certified for recreational diving to 40m

Water TempMeasures water temperature during swimming and diving

Both

3 shared

Heart RateContinuous or on-demand pulse tracking

SpO2Blood oxygen saturation, tracked during sleep

HRVHeart rate variability — stress & recovery scores

Garmin Forerunner 965 only

4 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

Running DynamicsCadence, ground contact time, stride length, vertical oscillation

Why buy each?

Apple Watch Ultra

42-hour battery + satellite SOS

The Ultra 3 nearly doubles the Series 11 battery life, and satellite emergency SOS works even without cellular or WiFi coverage.

Dual-frequency L1+L5 GPS

More precise GPS tracking in urban canyons and dense forests — critical for trail running, mountaineering, and triathlon.

3000-nit titanium-cased powerhouse

The 49mm titanium case and 3000-nit display make this watch usable in full direct sunlight and water depths up to 100m (EN13319 certified for diving).

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.

Bottom Line

Technical gaps

Watch Ultra-only sensors: Irregular Rhythm, Fall Detection, Crash Detection, Sleep Apnea, ECG, Skin Temp, Blood Pressure, Depth Gauge, Water Temp.
Forerunner 965-only sensors: Stress Tracking, Body Battery, Training Readiness, Running Dynamics.
Weight. Forerunner 965 is 9g lighter — relevant for all-day comfort and sleep.
Water resistance. Watch Ultra rates 100m vs 5ATM on Forerunner 965.

Commercial gaps

Hardware cost. Forerunner 965 is $200 cheaper upfront ($599 vs $799).

Pick the Apple Watch Ultra if…

Serious athletes, trail runners, triathletes, and outdoor adventurers who need the most durable, most accurate GPS watch Apple makes. Also for iPhone users who simply want the best Apple Watch regardless of sport, and value the extra battery life over the Series 11.

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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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