Apple Watch SE 3 vs Samsung Galaxy Watch 8

Apple Watch SE 3

The big SE 3 story: an always-on display, a first for the SE line. The LTPO OLED panel peaks at 1,000 nits — bright enough for everyday use, but half the Series 11's 2,000 nits and a third of the Ultra 3's 3,000.

• Always-on display arrives on the SE for the first time — Origin Disc: 'that alone is a huge upgrade for the SE line.'
• LTPO OLED panel peaks at 1,000 nits — fine for everyday use but dimmer than rivals.
• 1,000 nits is half the Series 11's 2,000 and a third of the Ultra 3's 3,000 — the SE 3's display is its clearest hardware compromise.
• Always-on is a personal-preference feature — some owners prefer to leave it off for extra battery life.

Samsung Galaxy Watch 8

A Super AMOLED panel — 1.34-inch on the 40mm, 1.5-inch on the 44mm — that now peaks at a brilliant 3,000 nits, a big jump over the Galaxy Watch 7's 2,000. Sapphire crystal protects it, and there's an always-on mode.

• Peak brightness jumps to 3,000 nits — a major upgrade over the Galaxy Watch 7's 2,000 nits, easily readable in direct sun.
• Crisp, colorful and fluid Super AMOLED — TechMishka says it 'looks amazing in all conditions.'
• Sapphire crystal protection on every size — premium scratch resistance.
• The display stays round despite the squircle case — TechMishka notes the round panel still limits how much information fits on screen.

Apple Watch SE 3

Heart rate is the SE 3's standout — testers rate it among the best wrist sensors available. Apple adds nightly wrist-temperature tracking and sleep apnea notifications. But ECG, blood oxygen (SpO2), and the Series 11's new hypertension alerts are all absent, and sleep-stage data underreports deep sleep.

• Heart-rate accuracy is excellent — Mike O'Brien tested it against a Polar H10 ECG chest strap and found it had the second-highest correlation of the watches tested, behind only the Pixel Watch 3.
• The Quantified Scientist rates the Apple Watch's optical heart-rate sensor as the best wrist HR monitor he has tested — the SE 3 inherits it.
• No ECG sensor — confirmed missing; if heart-rhythm ECG matters to you, you need the Series 11 or Ultra 3.
• No blood-oxygen (SpO2) sensor and no hypertension notifications — the Series 11's headline health features are absent.
• Apple adds nightly wrist-temperature tracking — the watch samples skin temperature roughly every 5 seconds overnight.
• Sleep apnea notifications are now included — a useful screening feature given how many people have undiagnosed sleep apnea.
• Sleep-stage tracking underreports deep sleep — Mike O'Brien recorded 45-55 minutes of deep sleep per night while reference devices showed 1.5-2.5 hours.

Samsung Galaxy Watch 8

This is the Galaxy Watch 8's strongest card — the deepest health suite of any Wear OS watch: ECG, blood pressure, body composition, SpO2, skin temperature, plus new metrics like the Antioxidant Index, Vascular Load and AGEs Index. Heart-rate accuracy during exercise is the weak spot.

• The deepest Wear OS health suite — ECG, blood pressure monitoring, body composition (BIA), SpO2 and skin temperature all on board.
• New wellness metrics — an Antioxidant Index, Vascular Load and an AGEs (cellular aging) score turn raw data into longer-term health guidance.
• Sleep tracking is a standout — Android Authority calls the Galaxy Watch 8 its favorite smartwatch for sleep tracking.
• Heart-rate accuracy lags rivals — The Quantified Scientist found it often read too low and lagged behind real heart-rate changes during exercise.
• The optical heart-rate hardware is essentially unchanged from the Galaxy Watch 7 — a disappointment for accuracy-focused buyers.

Apple Watch SE 3

The full watchOS workout app, activity rings, automatic workout detection, and built-in GPS. Apple rates about 7 hours of GPS workout tracking. It is not a dedicated running watch — no dual-frequency GPS — but for everyday fitness it covers the essentials well.

• Full watchOS workout app, activity rings and automatic workout detection — everything expected of an Apple Watch.
• Built-in GPS rated for about 7 hours of workout tracking — DesFit found real-world endurance well beyond that claim.
• The Quantified Scientist rates the Apple Watch SE as a pretty good GPS tracker — accurate enough for everyday runs and rides.
• Not a dedicated running watch — no dual-frequency GPS and no deep training analytics; serious runners still look to Garmin or the Ultra 3.
• Crash detection, fall detection and Emergency SOS carry over — Mike O'Brien notes fall detection is 'among the best in the industry.'

Samsung Galaxy Watch 8

Samsung Health workout tracking with dual-frequency GPS, automatic exercise detection and a new adaptive Running Coach. GPS distance is the best of any Samsung watch yet, though still behind a dedicated sports watch — and GPS workouts drain the battery hard.

• A new adaptive Running Coach delivers real-time pacing and audio feedback during runs.
• Dual-frequency GPS — distance accuracy is the best Samsung has managed yet, measured around 5.8% off outdoors, though still behind an Apple Watch.
• GPS locks fast — Ultra Value Tech got a fix in about 3 seconds in an urban area.
• GPS workouts drain the battery hard — a 1-hour run can eat 15-20%, capping GPS endurance.
• Automatic workout detection works, though it can be slow to recognize a session has started.

Apple Watch SE 3

Apple still rates the SE 3 at 18 hours of all-day battery, and that conservative number holds — but independent endurance tests stretched it to 37-41 hours of continuous wear depending on size. The genuine upgrade is fast charging: roughly 0-80% in 45 minutes, with a 15-minute top-up buying about 8 hours. A low-power mode reaches ~32 hours.

• Fast charging is new to the SE line — about 0-80% in 45 minutes, matching Apple's claim in testing.
• A 15-minute top-up buys roughly 8 hours of use — enough to rescue a sleep-tracking night.
• Endurance test: the 44mm SE 3 ran ~41 hours of continuous wear and the 40mm ~37-38 hours — far beyond Apple's conservative 18-hour rating.
• Still rated 18 hours — fast charging helps, but daily charging is the reality, and you may need a pre-bed top-up for sleep tracking.
• A low-power mode extends life to roughly 32 hours on a single charge.

Samsung Galaxy Watch 8

The Galaxy Watch 8's clearest weakness. Samsung rates it at 40 hours (always-on display off) or 30 hours (on), and real-world results are merely okay — roughly 27-45 hours depending on settings, with the 44mm a particular underperformer. A full charge takes around an hour to 90 minutes.

• Rated 40 hours with the always-on display off and 30 hours with it on — an 8% bigger battery than the Galaxy Watch 7.
• Tech Spurt got roughly 36 hours from a full charge — wishing it could clear 48 hours so it wouldn't need daily charging.
• Endurance testing exposed a 44mm quirk — The Product Reviewer measured the 44mm at just 27 hours and, oddly, the smaller 40mm lasting longer at 32 hours.
• Lighter use stretches it further — one tester pushed the 44mm Bluetooth model to about 45 hours with two nights of sleep tracking.
• A full charge takes roughly 1 hour to 1 hour 20 minutes via the 10W wireless puck — slower than rivals.

Apple Watch SE 3

watchOS 26 on Apple's S10 chip — identical core performance to the Series 11 and Ultra 3, including double-tap and wrist-flick gestures. 64GB of storage. Apple Pay, the App Store and the full ecosystem are all here. The one hard limit: it works only with an iPhone.

• Same S10 chip as the Series 11 and Ultra 3 — TheJuan&Only confirms identical core performance across the lineup.
• Supports the S10-enabled gestures — double-tap and wrist-flick to dismiss notifications.
• 64GB of storage and the full App Store, Apple Pay, Find My and Siri — nothing core is cut from the experience.
• iPhone-only — like every Apple Watch, the SE 3 does not work with Android phones.
• TechRadar: it has 'the same fantastic chipset as the Ultra 3 and Series 11' — the SE 3 doesn't feel slow or cut-down in daily use.

Samsung Galaxy Watch 8

One UI Watch 8 on Wear OS 6, running on the 3nm Exynos W1000 with 2GB of RAM and 64GB of storage. Gemini is built into the wrist. Performance is snappy and Samsung Health is comprehensive — but the deepest features need a Samsung phone, and there's no iOS support.

• One UI Watch 8 on Wear OS 6 — snappy and smooth on the 3nm Exynos W1000 chip.
• Gemini is built into the wrist — the Galaxy Watch 8 was among the first smartwatches to run Google's new AI assistant natively.
• 2GB of RAM and 64GB of storage — double the Galaxy Watch 7, with room for plenty of offline music.
• The deepest health features need a Samsung phone — full functionality is gated to Samsung handsets, and there's no iOS support at all.
• Samsung still locks down what users can tweak — TechMishka notes the UI is enjoyable but Samsung 'holds too much control.'

Apple Watch SE 3

Crack-resistant Ion-X glass, now rated about 4x tougher than the SE 2, over an aluminum case. Water resistance is 50m (5 ATM) — fine for pool and open-water swimming.

• 50m (5 ATM) water resistance — rated for pool and open-water swimming.
• Crack-resistant Ion-X glass, now about 4x more crack- and scratch-resistant than the SE 2.
• DesFit notes Apple Watch aluminum models hold up well in practice — he has scratched only one across many Apple Watches going back to the Series 3.
• Not as scratch-hardened as the Series 11's ceramic-coated glass or the Ultra 3's sapphire — fine for everyday wear, not adventure abuse.

Samsung Galaxy Watch 8

Sapphire-crystal glass over an armor-aluminum case, rated 5 ATM plus IP68 and MIL-STD-810H. It holds up well to everyday knocks — a month of heavy wear left long-term reviewers with barely a scratch.

• 5 ATM plus IP68 water and dust resistance — fine for swimming, showering and rain.
• Sapphire crystal holds up well — a month of heavy wear left long-term reviewers with barely a scratch on the glass.
• Armor aluminum case with MIL-STD-810H certification — durable for daily wear, though not a rugged adventure watch.

Apple Watch SE 3

Built-in GPS, Apple Pay via NFC, Bluetooth and Wi-Fi. An optional cellular model adds standalone connectivity for about $50 more. The SE 3 lacks the Series 11's second-generation ultra-wideband chip, so it can only ping a lost iPhone rather than guide you to it.

• Built-in GPS, Apple Pay (NFC), Bluetooth and Wi-Fi — the standard Apple Watch connectivity set.
• An optional cellular model adds standalone connectivity for roughly $50 more — useful for leaving the phone behind.
• No second-generation ultra-wideband chip — the SE 3 can only beep a lost iPhone, not precision-guide you to it like the Series 11.

Samsung Galaxy Watch 8

Dual-frequency GPS, Bluetooth, Wi-Fi and NFC payments. An optional LTE model adds standalone connectivity for about $50 more.

• Dual-frequency GPS, Bluetooth, Wi-Fi and NFC — the full connectivity set.
• An optional LTE model adds standalone connectivity for roughly $50 more.
• NFC payments work, but Tech Spurt notes Samsung doesn't make it easy to swap the default Samsung Wallet for Google Wallet.

Apple Watch SE 3

At a held-steady $249, the SE 3 is the cheapest way into a current Apple Watch and the obvious pick for most iPhone owners. The $399 Series 11 adds ECG, blood oxygen, hypertension alerts, a brighter screen and 24-hour battery; the $799 Ultra 3 adds far more. For the majority, the SE 3's gaps will not be felt.

• TechRadar's verdict: the SE 3 'might be the best-value Apple Watch ever made.'
• Mike O'Brien calls it 'the best Apple Watch for most people' — major improvements with very few noticeable differences from the $400 Series 11.
• Gizmodo: 'The Apple Watch SE 3 is a stupidly good value for $250.'
• Step up to the $399 Series 11 for ECG, blood oxygen, hypertension alerts, a 2,000-nit screen and 24-hour battery — worth it only if you actually need those.
• Best for: first-time Apple Watch buyers and anyone who wants the core experience for the lowest price — Tom's Guide names the SE 3 'the best value, great for first-time users.'

Samsung Galaxy Watch 8

At about $349.99 (40mm) rising to roughly $429.99 for the 44mm LTE, the Galaxy Watch 8 took a price hike reviewers widely call unjustified. It's the richest-software Wear OS watch — but the Pixel Watch 4 and OnePlus Watch 3 both counter hard on, respectively, polish and battery.

• PhoneArena's verdict: a 'brand-new design that looks original and grows on you, but the price hike is unjustified.'
• It starts around $349.99 for the 40mm and climbs to roughly $429.99 for the 44mm LTE — about $50 more than the Galaxy Watch 7.
• vs the OnePlus Watch 3: reviewers repeatedly point to the OnePlus for 3-4 days of battery against the Galaxy Watch 8's day-and-a-half.
• It's an iterative update — Tavesper sums it up as 'minor changes' that don't make it significantly better than the Galaxy Watch 7.
• Best for: Samsung phone owners who want the deepest health software in a Wear OS watch and can live with daily charging.