Which Apple Watch should you buy in 2026? Series 12 vs SE 3 vs Ultra 4 (US and India prices)

Apple sells three Apple Watches right now: the Series 12, the cheaper SE 3 and the rugged Ultra 4. They look similar on a shop shelf, but there’s a ₹80,000 ($550) gap between the cheapest and the priciest, and the differences that matter aren’t always obvious.

Here’s which one to buy, with US and India prices from Apple’s own stores.

The quick answer:

• Most people: Series 12, from $399 (₹56,900). The best health sensors and a brighter screen.
• On a budget, or buying for a teenager: SE 3, from $249 (₹29,900). Most of the everyday features for much less.
• Hikers, divers and battery obsessives: Ultra 4, at $799 (₹1,09,900). Two days of battery, a tougher case and satellite messaging.

Apple Watch prices in 2026

Model	US	India
SE 3, 40mm GPS	$249	₹29,900
SE 3, 44mm GPS	$279	₹33,900
Series 12, 42mm GPS	$399	₹56,900
Series 12, 46mm GPS	$449	₹62,900
Series 12, titanium	from $699	from ₹99,900
Ultra 4, 49mm	$799	₹1,09,900
Series 12, ceramic	from $899	from ₹1,24,900

Cellular adds $50 to $100 in the US and ₹6,000 to ₹12,000 in India. The SE 3 with cellular starts at $299 (₹35,900), and the aluminium Series 12 at $499 (₹68,900). The titanium and ceramic Series 12 and the Ultra 4 come with cellular as standard.

One India note: the SE 3 launched at ₹25,900 in 2025, and Apple has since raised it to ₹29,900.

The differences that matter

	SE 3	Series 12	Ultra 4
Battery	18 hrs	24 hrs	50 hrs
Brightest	1,000 nits	2,000 nits	3,000 nits
ECG, blood oxygen	No	Yes	Yes
Blood pressure alerts	No	Yes*	Yes*
Water	50 m	50 m	100 m, diving
Satellite	No	No	Yes (not India)
Sizes	40, 44mm	42, 46mm	49mm

*Apple’s hypertension notifications are listed for the US and India, but Apple says they may not be available on the Series 12 or Ultra 4 in your region yet while approvals for the new models are completed.

All three have an always-on display, sleep score, sleep apnea notifications, wrist temperature sensing, Double Tap gestures, 64GB of storage and 5G on cellular models.

Apple Watch Series 12: the best for most people

The Series 12’s big change is a new Health Sensing System: new optical and electrical heart sensors that check your heart rate every five seconds and measure heart-rate variability far more often. That feeds a new daily Readiness score (0 to 10), plus daytime Vitals and redesigned step counting.

It also has ECG, Blood Oxygen and hypertension notifications, which the SE 3 lacks, a screen twice as bright as the SE’s, and up to 24 hours of battery (38 in Low Power Mode). A 15-minute charge gives up to 12 hours. Later this year, Apple’s new Audio Intelligence features, such as Live Rewind and Siri Recap, come to the Series 12 and Ultra 4 only (and need an iPhone 16 or later).

Aluminium models now use tougher Ceramic Shield 2 glass, and there’s a new ceramic case if you want something fancier.

Buy it if you want the best health tracking without the Ultra’s size and price. The 42mm GPS model is the sweet spot.

Apple Watch SE 3: the best value

The SE 3 gets you most of what people actually use an Apple Watch for: notifications, workouts, activity rings, sleep score, sleep apnea notifications, wrist temperature and Double Tap. It’s also the first SE with an always-on display.

What you give up: no ECG, no Blood Oxygen and no blood pressure alerts, a dimmer screen, and 18 hours of battery (32 in Low Power Mode), so it’s a nightly charge. It runs on the older S10 chip.

Buy it if your budget is tight, it’s your first Apple Watch, or it’s for a teenager. If you want to set it up for a child who doesn’t have their own iPhone, get the cellular model.

Apple Watch Ultra 4: for adventure and battery life

The Ultra 4 is the one for the outdoors. Its 49mm titanium case (3D-printed from recycled titanium) has a flat sapphire front and the brightest screen Apple makes, at 3,000 nits. Battery life is the headline: up to 50 hours, or 84 hours in Low Power Mode.

It’s rated to 100 metres of water and certified for recreational diving to 40 metres, and it can send SOS, messages and Find My location via satellite when you’re out of mobile range (free for two years). Satellite features aren’t available in India, though. It shares the Series 12’s new heart sensors and S11 chip.

Buy it if you hike, dive, run long distances or simply hate charging. It’s big and heavy for a small wrist, so try one on first.

Which size, and GPS or cellular?

• Size: try them on if you can. The SE 3 comes in 40 and 44mm, the Series 12 in 42 and 46mm, and the Ultra only in 49mm.
• GPS works with your iPhone nearby (and on Wi-Fi). Cellular lets you call, message and stream music with your phone at home, but needs a plan from your carrier, so check that yours supports Apple Watch before paying extra.

Will it work with your iPhone?

You need an iPhone 11 or later (or an iPhone SE, 2nd generation or later) on iOS 27. If you already own an Apple Watch, note that watchOS 27 runs only on the Series 9 and later, SE 3, and Ultra 2 and later. An older watch won’t get new features, which makes it a good time to upgrade.

What about older models?

Apple no longer sells older models new, but you’ll find discounts. In the US, Apple’s Certified Refurbished store has the Series 11, Series 10, Ultra 3 and Ultra 2, and retailers have been clearing out the Ultra 3. A well-priced Ultra 3 or Series 11 is still a very good watch. You’d miss the Series 12 and Ultra 4’s new heart sensors, Readiness score and Audio Intelligence features.

The verdict

• Series 12 is the one to get for most people: the best health features in a size that suits everyone.
• SE 3 is the smart buy if you mainly want notifications, fitness and sleep tracking.
• Ultra 4 is worth it only if you’ll use its battery, toughness and satellite features.

Already have one? See how to use the always-on display on Apple Watch.

FAQ

Which Apple Watch is cheapest in 2026? The Apple Watch SE 3, from $249 in the US and ₹29,900 in India.

Does the Apple Watch SE 3 have ECG? No. ECG, Blood Oxygen and hypertension notifications need a Series 12 or Ultra 4.

Is the Apple Watch Ultra 4 worth it over the Series 12? Only if you need its 50-hour battery, 100-metre water rating, dive certification or satellite features. For everyday use, the Series 12 has the same chip and heart sensors for less.

Do Apple Watch satellite features work in India? No. Satellite SOS, messaging and Find My on the Ultra 4 aren’t available in India.

Which iPhones work with the Apple Watch Series 12? iPhone 11 or later, or iPhone SE (2nd generation or later), running iOS 27.