Apple Watch Ultra 3 vs Garmin Forerunner 965

Apple Watch Ultra 3

The Ultra 3 has the largest display Apple has ever put on a watch — a 422 x 512 wide-angle LTPO3 OLED at 3,000 nits, now with a 1Hz always-on refresh that lets the seconds tick. The flat sapphire-crystal front is tough but slightly reflective.

• The largest Apple Watch display ever — a 422 x 512 wide-angle OLED with slimmer bezels than the Ultra 2.
• 3,000-nit peak brightness — Tech It Easy notes that's a 1,000-nit jump over the Ultra 2, easily readable in any conditions.
• A new 1Hz always-on refresh lets the second hand tick while showing more data — and is more power-efficient.
• The flat sapphire-crystal front is durable but slightly reflective in some outdoor lighting.

Garmin Forerunner 965

1.4-inch AMOLED, 454×454 resolution — nearly 4× the resolution of the Forerunner 955's memory-in-pixel panel. Always-on display. Vibrant, sharp, and readable in sunlight.

• 1.4-inch 454×454 AMOLED — DC Rainmaker: 'they've increased the resolution by almost 4X' over the 955's MIP panel.
• The Verge: 'For once, there's practically no tradeoff between an always-on OLED display and long battery life.'
• Garmin eschewed the MIP panel for AMOLED — Notebookcheck confirms the 965 is AMOLED, a shift from the 955's transflective display.
• Always-on display supported — vibrant and readable in direct sunlight without significant battery penalty.
• Larger display improves on-watch map readability + data-field density vs the smaller Forerunner 265.

Apple Watch Ultra 3

The Ultra 3 carries Apple's full health suite — ECG, blood oxygen, skin temperature, Sleep Score, sleep apnea — plus the new hypertension notifications. Independent testing rates its heart-rate and sleep tracking among the best of any wearable.

• Heart-rate tracking is excellent — The Quantified Scientist rates it 'some of the best out there' and one of his most recommended watches for HR accuracy.
• Sleep tracking is class-leading — The Quantified Scientist measured REM-sleep agreement of about 83-84%, 'by far the best out of any device I've seen.'
• New hypertension notifications join ECG, blood oxygen, skin temperature and sleep apnea detection.
• A Sleep Score condenses the night into a single number, with full stage detail underneath.
• For high-intensity weightlifting, even the Ultra 3's strong sensor sees occasional dropouts — a chest strap is still better.

Garmin Forerunner 965

Elevate Gen 4 optical HR, SpO2, HRV Status, sleep tracking, Body Battery, stress tracking, Morning Report. No ECG. Garmin's analytics suite is the strength; raw HR accuracy lags chest straps for intervals.

• Elevate Gen 4 optical HR — reliable for steady-state; like all wrist optical HR, less accurate than a chest strap for intervals.
• HRV Status — overnight heart-rate-variability tracking feeds Training Readiness + recovery insights.
• Body Battery + stress tracking + sleep tracking + Morning Report — Garmin's full daily-wellness suite.
• No ECG — the5krunner explicitly notes the 965 lacks the ECG feature found on other Garmin watches.
• SpO2 (pulse ox) — on-demand + spot-check; useful for altitude acclimatization.

Apple Watch Ultra 3

The full watchOS workout app plus the new Workout Buddy AI coaching, dual-frequency GPS billed as the most accurate in a sports watch, and a customizable Action Button. It's a superb everyday fitness and running watch — though serious athletes still note Garmin's deeper analytics.

• Dual-frequency GPS — Apple bills it as the most accurate GPS in a sports watch, and reviewers found tracking reliable on runs and hikes.
• New Workout Buddy AI coaching delivers pacing and motivational feedback during workouts.
• GPS workout battery burn is light for the class — ZONEofTECH lost just 22% over a 5-hour outdoor walk without Low Power Mode.
• It's the best Apple Watch for running — but serious athletes still note Garmin's deeper training analytics and far longer endurance.
• The customizable Action Button gives quick one-press control over workouts and key functions.

Garmin Forerunner 965

Garmin's deepest training-science suite — Training Readiness, Acute/Chronic Load ratio, Training Status, wrist running power, Run Dynamics, race predictor, PacePro, daily suggested workouts. The serious-athlete benchmark.

• Training Readiness + Acute/Chronic Load ratio — DC Rainmaker: 'takes your Acute Load, the short-term load, in comparison to your Chronic Load, your 28-day load' for science-backed training guidance.
• Wrist-based running power + Run Dynamics — vertical oscillation, ground contact time, stride length, all without a chest strap or footpod.
• Daily suggested workouts + PacePro + race predictor — Garmin's coaching engine; among the deepest in any smartwatch.
• Triathlon + multisport modes — open-water swim, brick workouts, transitions; a genuine triathlon training tool.
• 5 ATM water resistance — pool + open-water swim tracking supported.

Apple Watch Ultra 3

The Ultra 3 has the longest battery of any Apple Watch — 42 hours rated (up from the Ultra 2's 36), 72 hours in Low Power Mode. Real-world results routinely beat the claim, hitting 50-72 hours. Charging is rated 0-80% in 45 minutes, though some testers couldn't quite reach that.

• Rated 42 hours of normal use — up from the Ultra 2's 36 — and up to 72 hours in Low Power Mode.
• Real-world endurance beats the claim — ZONEofTECH averaged 50 hours over a month, with days hitting 56 hours including a workout.
• A head-to-head test had the Ultra 3 reach 55 hours before dying — about 7 hours longer than the Ultra 2 in the same test.
• Heavier use lands closer to the rating — Tech It Easy hit about 35 hours with studio work, sleep tracking and normal use.
• Charging is rated 0-80% in 45 minutes with 12 hours from a 15-minute top-up — though ZONEofTECH couldn't hit the 45-minute claim across multiple chargers.

Garmin Forerunner 965

~23 days smartwatch mode, ~31 hours all-systems GPS. Garmin's signature multi-week battery — no daily-charge anxiety. Proprietary USB-C charging cable (no Qi, no solar).

• ~23 days smartwatch mode — Garmin's signature multi-week battery; far beyond Apple Watch Ultra or Galaxy Watch.
• ~31 hours all-systems GPS — multi-day ultra and adventure tracking without recharge.
• No solar charging — the5krunner notes the 965 lacks the solar option found on Fenix-tier Garmins.
• No Qi wireless charging — proprietary Garmin USB-C cable only.
• Reddit users cite the multi-week battery as a defining advantage — no charging cable to pack on trips.

Apple Watch Ultra 3

watchOS 26 on Apple's S10 chip, with the full App Store, Apple Pay and the deepest smartwatch ecosystem there is. Reviewers consistently rate it the best smartwatch software available — the one hard limit is that it's iPhone-only.

• watchOS 26 with the full App Store and Apple Pay — reviewers consistently rate it the deepest, most polished smartwatch ecosystem.
• Powered by Apple's S10 chip — fast and fluid, a step up from the Ultra 2's S9.
• The Modular Ultra watch face and night mode are owner favorites — and a reason some prefer the Ultra over a Series 11.
• It's iPhone-only — like every Apple Watch, the Ultra 3 does not work with Android.

Garmin Forerunner 965

Garmin OS + Garmin Connect app + Connect IQ store for apps/watch faces. Garmin Pay. No speaker/mic, no voice assistant. Works with iOS + Android. Frequent firmware updates.

• Garmin OS + Connect IQ store — apps, watch faces, data fields. Not Wear OS, but a mature ecosystem.
• Garmin Connect app — universally praised for training analytics depth, frequently criticized for app-UI polish.
• Frequent firmware updates — Notebookcheck documented 'nearly 30 bug fixes, improvements and new features in first beta update.'
• No speaker/microphone — the5krunner notes no on-watch voice calls or assistant.
• Works with both iOS and Android — cross-platform, unlike Apple Watch or Galaxy Watch.
• Garmin Pay — contactless payments via NFC.

Apple Watch Ultra 3

A 49mm grade-5 titanium case with a flat sapphire-crystal front and edge protection, MIL-STD-810H certified and rated to 100m water resistance. Long-term reviewers call durability one of the Ultra 3's strongest features — with the caveat that the black finish scuffs.

• Durability is one of the Ultra 3's strongest features — Tech It Easy was 'genuinely surprised' how well it holds up.
• Grade-5 titanium case with a flat sapphire-crystal front and raised edge protection — MIL-STD-810H certified.
• 100m water resistance — rugged enough for swimming, watersports and recreational diving.
• The black titanium coating scuffs more easily than the natural finish — the natural model hides wear better.

Garmin Forerunner 965

5 ATM water resistance. Titanium bezel + Gorilla Glass 3 (no sapphire). Fiber-reinforced polymer case. Built for daily training abuse — but the glass is the weak point.

• 5 ATM (50m static) water resistance — pool + open-water swim rated.
• Titanium bezel — protects the toughened display + adds structural integrity.
• Gorilla Glass 3 — the weak point. No sapphire option at the $599 price; the5krunner reports scratch concerns.
• Fiber-reinforced polymer case — lightweight and durable for daily training.

Apple Watch Ultra 3

The Ultra 3's headline upgrade: satellite communication — Emergency SOS, Messages and Find My via satellite, off-grid and subscription-free. It adds 5G cellular, dual-frequency GPS and precision iPhone finding.

• Satellite communication is the marquee feature — Emergency SOS, Messages and Find My via satellite work off-grid, with no subscription.
• DC Rainmaker found Apple's satellite messaging faster than Garmin or Google, and its non-geostationary approach can wait for a satellite to come into view.
• 5G cellular is built in — the Ultra is always a cellular model, so it works fully standalone without an iPhone nearby.
• Dual-frequency GPS plus precision iPhone finding and the full Apple Pay / NFC set round out connectivity.

Garmin Forerunner 965

Multi-band (dual-frequency) GPS, full-color TopoActive maps, NFC for Garmin Pay, Bluetooth, ANT+, Wi-Fi. No LTE — phone required for connectivity.

• Multi-band (dual-frequency) GPS — accurate tracking in urban canyons + dense tree cover.
• Full-color TopoActive maps — on-watch mapping + turn-by-turn navigation, a key 965-vs-265 differentiator.
• ANT+ + Bluetooth — pair chest straps, footpods, power meters, cycling sensors.
• NFC for Garmin Pay + Wi-Fi for sync.
• No LTE — the5krunner notes the 965 lacks cellular; phone required for connectivity.

Apple Watch Ultra 3

At $799 — unchanged from the Ultra 2 — the Ultra 3 is the most expensive Apple Watch and an undeniable luxury. For most people a Series 11 covers the essentials at half the price; the Ultra earns its premium only if you genuinely want the biggest screen, longest battery, satellite safety and diving.

• $799 — unchanged from the Ultra 2, which reviewers credit Apple for holding steady.
• AppleInsider's review roundup: the Ultra 3 is an 'excellent and much-needed upgrade,' universally praised for battery and screen.
• For most people, TechRadar argues a Series 11 makes more sense — it covers the essentials for a fraction of the cost.
• vs Garmin: as a smartwatch the Ultra 3 wins on ecosystem, apps and ease of use; Garmin still wins on battery and deep training analytics.
• Best for: iPhone owners who want the ultimate Apple Watch — the biggest screen, longest battery, satellite safety and diving — and aren't fazed by the price.

Garmin Forerunner 965

$599 launch — premium running-watch tier. Competes with the cheaper Forerunner 265, the Fenix-tier Garmins, and the Apple Watch Ultra 2. Ages well and discounts over time.

• $599 launch price — the5krunner: 'disconcertingly high,' especially given no sapphire glass.
• Discounts well over time — T3: 'Garmin's best-selling Forerunner 965 watch has been discounted to its lowest-ever price.'
• vs Forerunner 265 (£429): the 265 is the cheaper AMOLED sibling. The 965 adds maps, the larger display, and the titanium bezel.
• Garmin watches age very well — Wired: 'even though Garmin watches are costly, they age very well' and hold value.
• vs Apple Watch Ultra 2: Garmin wins on battery + training depth; Apple wins on smart features, LTE, ECG, and ecosystem (for iPhone owners).