Apple Watch Ultra 3 vs Samsung Galaxy Watch 7

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.

Samsung Galaxy Watch 7

Super AMOLED with Sapphire Crystal, 3,000 nits peak brightness. Bright, sharp, readable outdoors. Always-on display supported.

• 3,000 nits peak brightness — a 50% jump over the Watch 6's 2,000 nits; excellent outdoor visibility.
• Super AMOLED with Sapphire Crystal — vibrant, sharp, scratch-resistant.
• Always-on display supported — informative without raising the wrist.
• Readable in direct sunlight — the 3,000-nit brightness handles outdoor workouts well.
• Display sits behind the raised glass profile — bright and clear, but the raised glass is the durability weak point.

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.

Samsung Galaxy Watch 7

BioActive sensor — optical HR, ECG, BIA body composition, skin temperature, plus the new AGEs Index biological-age metric. Sleep tracking with coaching.

• New AGEs Index — the Galaxy Watch 7 introduced advanced glycation end products tracking, estimating biological age via a skin scan.
• BioActive sensor — optical HR, ECG, BIA body composition, and skin temperature in one array.
• Sleep tracking with sleep coaching — detailed sleep stages plus a multi-week coaching program.
• ECG + BIA tied to a Samsung phone — the headline health features need Samsung Health on a Galaxy phone.
• Improved sensor accuracy — the new chip and updated BioActive sensor improve HR tracking over the Watch 6.

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.

Samsung Galaxy Watch 7

100+ workout modes, dual-frequency GPS (new), personalized HR zones, Energy Score. Samsung Health analytics. Solid everyday fitness; serious athletes still lean Garmin.

• Dual-frequency GPS — new for the standard Galaxy Watch; more accurate tracking in urban canyons and tree cover.
• 100+ workout modes — broad activity coverage through Samsung Health.
• Energy Score + Galaxy AI Wellness Tips — Samsung Health's AI-powered daily readiness and guidance.
• Personalized heart-rate zones + automatic workout detection — tailored training guidance.
• 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.

Samsung Galaxy Watch 7

~30 hours typical use, 425mAh (44mm) / 300mAh (40mm). Battery drew criticism — many owners found it underwhelming. Wireless fast charging.

• Battery drew criticism — Engadget: 'many people were disappointed in its battery life.'
• ~30 hours typical use — similar to the Watch 6; the 44mm (425mAh) outlasts the 40mm (300mAh).
• The new 3nm Exynos W1000 chip improves efficiency — but not enough to fully address the battery complaints.
• Wireless fast charging — a quick top-up before bed enables overnight sleep tracking.
• The Galaxy Watch 8 later addressed the battery complaints with a larger cell — confirming the Watch 7's was a known weak point.

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.

Samsung Galaxy Watch 7

Wear OS 5 + One UI 6 Watch + Galaxy AI. Samsung Health, Samsung Pay + Google Wallet, Google Play Store. Best inside the Samsung phone ecosystem. Android-only.

• Wear OS 5 + One UI 6 Watch — a complete, polished Wear OS experience with the full Google Play Store.
• Galaxy AI features — Energy Score and AI Wellness Tips arrived on the Galaxy Watch 7.
• Samsung Health — the analytics backbone; AGEs Index and ECG are tied to a Samsung phone.
• Samsung Pay + Google Wallet — both contactless payment options supported.
• Android-only — no iOS compatibility; best on a Samsung Galaxy phone.

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.

Samsung Galaxy Watch 7

5 ATM (50m) water resistance + IP68 + MIL-STD-810H. Sapphire Crystal display + aluminum case. The raised glass profile is the durability weak point.

• 5 ATM + IP68 + MIL-STD-810H — the full Galaxy Watch durability ratings.
• Sapphire Crystal display protection — premium scratch resistance.
• Raised glass profile — Engadget flags this as the durability weak point: 'the raised glass screen can be easily damaged.'
• Aluminum case — durable and lightweight for everyday wear.

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.

Samsung Galaxy Watch 7

Dual-frequency GPS (new), optional LTE, NFC for Samsung Pay + Google Wallet, Bluetooth, Wi-Fi. No satellite messaging.

• Dual-frequency GPS — new for the standard Galaxy Watch 7; more accurate than the Watch 6's single-band GPS.
• Optional LTE — standalone calls, texts, and music streaming without the phone.
• NFC for Samsung Pay + Google Wallet — both contactless options.
• Bluetooth + Wi-Fi — full Wear OS connectivity stack.
• No satellite messaging — a feature reserved for higher tiers.

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.

Samsung Galaxy Watch 7

$299 (40mm) / $329 (44mm) launch. Now superseded by the Galaxy Watch 8 — a strong value if discounted. Competes with the Pixel Watch and (for iOS) the Apple Watch.

• $299 (40mm) / $329 (44mm) launch — fairly priced for a flagship Wear OS watch.
• Android Authority's standing recommendation: 'Samsung forgot about the Galaxy Watch 7, but I still think you should buy it' — a strong value pick.
• vs Galaxy Watch Ultra (same generation): the Ultra adds a rugged build, a larger battery, and a Quick Button for considerably more money.
• Now superseded by the Galaxy Watch 8 — which added a larger battery and the squircle redesign.
• Best for: Samsung phone owners who want the faster 3nm chip, dual-band GPS, and the AGEs Index — and find the overlooked Watch 7 discounted.