Apple Watch Series 10 arrived on September 20, 2024, after its September 9 announcement. It introduced a slimmer case, larger 42mm and 46mm sizes, a brighter wide-angle OLED display, faster charging, sleep apnea notifications, and built-in depth and water-temperature sensing.
It is no longer part of Apple’s main U.S. lineup, which now consists of Apple Watch Series 11, Apple Watch SE 3, and Apple Watch Ultra 3. That makes Series 10 a previous-generation model, but it remains a strong option when found at a sensible price through remaining stock, resale, or Apple Certified Refurbished listings. It also remains compatible with watchOS 26.
Apple Watch Series 10 at a glance
| Specification | 42mm | 46mm |
|---|---|---|
| Case dimensions | 42 × 36 × 9.7mm | 46 × 39 × 9.7mm |
| Display resolution | 374 × 446 pixels | 416 × 496 pixels |
| Display area | 989 sq mm | 1,220 sq mm |
| Wrist size | 130–200mm | 140–245mm |
| Weight | Varies by case and connectivity | Varies by case and connectivity |
| Materials | Aluminum or titanium | Aluminum or titanium |
| Battery rating | Up to 18 hours, or up to 36 hours in Low Power Mode | |
| Storage | 64GB | |
The original U.S. launch price was $399. Series 10 is now a previous-generation watch, so its current price depends on condition, seller, case material, connectivity, and remaining stock rather than Apple’s former launch price.
Design, case sizes, and finishes
Series 10 is nearly 10 percent thinner than Series 7, Series 8, and Series 9. The redesigned metal back incorporates the antenna into the housing, helping Apple reduce the overall thickness without abandoning the familiar square watch design.
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#1 Best Overall
![Apple Watch Series 11 [GPS 46mm] Smartwatch with Jet Black Aluminum Case with Black Sport Band - M/L. Sleep Score, Fitness Tracker, Health Monitoring, Always-On Display, Water Resistant](https://m.media-amazon.com/images/I/416RQ0rtsUL._SL160_.jpg)
- A FULL-FEATURED HEALTH TRACKER—Apple Watch Series 11 gives you invaluable insights about your body, right from your wrist. Take an ECG anytime* and get alerts for a high and low heart rate or an irregular rhythm*—so you can stay closer to your heart. You can also view your overnight health tracking metrics with the Vitals app* and be notified of possible sleep apnea.*
- KNOW YOUR SLEEP SCORE—With advanced sleep tracking, Series 11 gives you a daily sleep score. It’s an easy way to help measure and understand the quality of your sleep, so you can make it more restorative.
- GET HYPERTENSION NOTIFICATIONS—Did you know that Series 11 can spot signs of chronic high blood pressure? By analyzing how your blood vessels respond to beats of the heart, it can notify you of possible hypertension.*
- SAFETY FEATURES—A smartwatch that puts your safety first. Series 11 can detect a hard fall or severe car crash, automatically help connect you with emergency services, and notify your emergency contacts.* Check In can automatically notify a loved one when you’ve arrived at your destination.
- A POWERFUL FITNESS TRACKER—With advanced metrics and motivating features like Pacer, Heart Rate Zones, training load, and Workout Buddy powered by Apple Intelligence from your nearby iPhone*—Series 11 is made to help everyone stay active, from runners and hikers to strength-training enthusiasts.
The case sizes changed from the 41mm and 45mm options used by earlier generations to 42mm and 46mm. This is worth checking when buying a replacement case or screen protector, although existing 41mm and 45mm bands remain compatible with the corresponding Series 10 sizes.
Available materials and colors
- Aluminum: Jet Black, Rose Gold, and Silver.
- Titanium: Slate, Gold, and Natural.
Aluminum versions use Ion-X front glass. Titanium versions have sapphire front crystal, which is more resistant to scratches. Both are available with GPS or GPS + Cellular configurations, depending on the specific model being sold.
Display: larger, brighter, and easier to read at an angle
Series 10 uses an LTPO3 OLED Always-On Retina display with a wide-angle OLED design. Apple rates it for up to 2,000 nits of maximum brightness, with a minimum brightness of 1 nit. The panel has a pixel density of 326 pixels per inch.
The notable change is not only the extra display area. Apple says the screen can appear up to 40 percent brighter when viewed at an angle. That makes it easier to glance at the time, workout metrics, or a notification without turning the watch directly toward your face.
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The 46mm version gives you 1,220 square millimeters of display area, compared with 989 square millimeters on the 42mm model. Choose the 46mm if reading messages and workout data is a priority; the 42mm is the less conspicuous option for smaller wrists.
Performance, storage, and connectivity
Inside is Apple’s S10 SiP, with a 64-bit dual-core processor and four-core Neural Engine. Series 10 has 64GB of storage, enough for apps, downloaded music, podcasts, and offline content.
Other hardware includes:
- Digital Crown with haptic feedback.
- Double Tap gesture support.
- On-device Siri processing.
- Second-generation Ultra Wideband chip.
- Bluetooth 5.3.
- Wi-Fi 4 (802.11n).
- GPS, GLONASS, Galileo, QZSS, and BeiDou positioning.
- Optional LTE and UMTS cellular connectivity.
GPS models are best suited to users who normally carry an iPhone. GPS + Cellular models can handle supported calls, messages, streaming, and emergency functions away from the phone when an active carrier plan is available. Cellular capability does not make Series 10 an Android-compatible smartwatch: Apple Watch pairs only with an iPhone.
Rank #2
![Apple Watch Series 11 [GPS 42mm] Smartwatch with Rose Gold Aluminum Case with Light Blush Sport Band - S/M. Sleep Score, Fitness Tracker, Health Monitoring, Always-On Display, Water Resistant](https://m.media-amazon.com/images/I/31caPPnRysL._SL160_.jpg)
- A FULL-FEATURED HEALTH TRACKER—Apple Watch Series 11 gives you invaluable insights about your body, right from your wrist. Take an ECG anytime* and get alerts for a high and low heart rate or an irregular rhythm*—so you can stay closer to your heart. You can also view your overnight health tracking metrics with the Vitals app* and be notified of possible sleep apnea.*
- KNOW YOUR SLEEP SCORE—With advanced sleep tracking, Series 11 gives you a daily sleep score. It’s an easy way to help measure and understand the quality of your sleep, so you can make it more restorative.
- GET HYPERTENSION NOTIFICATIONS—Did you know that Series 11 can spot signs of chronic high blood pressure? By analyzing how your blood vessels respond to beats of the heart, it can notify you of possible hypertension.*
- SAFETY FEATURES—A smartwatch that puts your safety first. Series 11 can detect a hard fall or severe car crash, automatically help connect you with emergency services, and notify your emergency contacts.* Check In can automatically notify a loved one when you’ve arrived at your destination.
- A POWERFUL FITNESS TRACKER—With advanced metrics and motivating features like Pacer, Heart Rate Zones, training load, and Workout Buddy powered by Apple Intelligence from your nearby iPhone*—Series 11 is made to help everyone stay active, from runners and hikers to strength-training enthusiasts.
Battery life and fast charging
Apple rates Series 10 for up to 18 hours of normal use and up to 36 hours with Low Power Mode enabled. Actual runtime varies considerably. Cellular activity, poor signal, GPS workouts, music playback, frequent notifications, and cold temperatures can all reduce it.
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|---|---|
| Normal use | Up to 18 hours |
| Low Power Mode | Up to 36 hours |
| Charge level | Up to 80 percent in about 30 minutes |
| 15-minute charge | Up to 8 hours of normal use |
| 8-minute charge | Up to 8 hours of sleep tracking |
Fast charging requires the Apple Watch Magnetic Fast Charger to USB-C Cable and a compatible USB-C power adapter. Apple’s test used a 20W USB-C adapter. The box includes the charging cable but not a power adapter, so check what is included when buying a used or refurbished watch.
Health and fitness features
Series 10 combines the third-generation optical heart sensor with an electrical heart sensor and a range of health and safety functions:
- ECG app.
- High- and low-heart-rate notifications.
- Irregular-rhythm notifications.
- Wrist-temperature sensing.
- Cycle Tracking with retrospective ovulation estimates.
- Sleep tracking and sleep stages.
- Sleep apnea notifications.
- Vitals app.
- Noise monitoring.
- Fall Detection and Crash Detection.
- Blood Oxygen hardware and app support, subject to regional restrictions.
The ECG app is intended for people aged 22 and over. Irregular-rhythm notifications are not intended for people under 22 or for people already diagnosed with atrial fibrillation. These features provide health information and are not a substitute for medical advice.
Sleep apnea notifications
Series 10 looks for breathing disturbances during sleep and can issue a possible sleep apnea notification when the pattern shows consistent signs of moderate to severe sleep apnea. The evaluation takes 30 days, and Apple says the watch must be worn for at least 10 nights during that period.
The feature is intended for adults aged 18 or older who have not already been diagnosed with sleep apnea. It does not diagnose or treat the condition, and receiving no notification does not prove that sleep apnea is absent.
To set it up on a current iPhone:
- Open Health.
- Tap Search.
- Choose Respiratory.
- Under Sleep Apnea Notifications, tap Set Up.
- Tap Next, confirm your date of birth and diagnosis status, then tap Continue, Next, and Done.
On some versions of the Health app, the same option appears under Health → profile picture or initials → Health Checklist → Set Up below Sleep Apnea Notifications.
Rank #3
![Apple Watch Series 10 [GPS 46mm case] Smartwatch with Jet Black Aluminum Case with Black Sport Band - M/L. Fitness Tracker, ECG App, Always-On Retina Display, Water Resistant](https://m.media-amazon.com/images/I/31Cud2WnszL._SL160_.jpg)
- WHY APPLE WATCH SERIES 10 — Bigger display with up to 30 percent more screen area.* A thinner, lighter, and more comfortable design.* Advanced health and fitness features provide invaluable insights.* Safety features connect you to help when you need it.* Faster charging gives you 80 percent battery in about 30 minutes.*
- ADVANCED HEALTH INSIGHTS — Take an ECG anytime.* Get notifications if you have high or low heart rate or an irregular heart rhythm.* Understand your menstrual cycle and get retrospective ovulation estimates.* See overnight health metrics like heart rate, respiratory rate, and more with the Vitals app.* Track sleep and get notifications if Apple Watch detects signs of sleep apnea.*
- A POWERFUL FITNESS PARTNER — Measure all the ways you move with Activity Rings, which are customizable to match your lifestyle. Get advanced metrics for a range of workouts with the Workout app. Track the intensity of your workouts with training load. Use depth and water temperature sensors for your aquatic adventures. And Apple Watch comes with three months of Apple Fitness+ free.*
- STAY CONNECTED — Send a text, take a call, listen to music and podcasts, use Siri, and get notifications on the go. Apple Watch Series 10 (GPS) works with your iPhone or Wi-Fi to keep you connected.
- INNOVATIVE SAFETY FEATURES — Fall Detection and Crash Detection can connect you with emergency services in the event of a hard fall or a severe car crash. Emergency SOS lets you call for help with the press of a button.* Check In automatically notifies a loved one when you’ve arrived at your destination.*
Review collected data at Health → Search → Respiratory → Breathing Disturbances. To switch the feature off, use Health → profile picture or initials → Health Checklist → Sleep Apnea Notifications, then turn off Sleep Apnea Notifications.
No result or an unavailable setup option can have several explanations: too little sleep data, Track Sleep with Apple Watch being disabled, age or diagnosis restrictions, or regional availability.
Wrist-temperature tracking
Wrist temperature is primarily useful for tracking changes over time rather than taking a one-off temperature reading. Wear the watch to bed with sleep tracking enabled and Sleep Focus turned on. Apple says it needs at least four hours of sleep tracking per night, with data becoming available after approximately five nights.
Find the results on iPhone at Health → Search → Body Measurements → Wrist Temperature. To disable it on the watch, use Settings → Privacy & Security → Health → Wrist Temperature. You can also use Watch app → My Watch → Privacy on the iPhone.
Blood Oxygen restrictions in the United States
U.S. Series 10 watches purchased on or after January 18, 2024, with part numbers ending in LW/A have a different Blood Oxygen experience. The sensors may still be present, but analysis is performed on the paired iPhone and results are viewed in the iPhone Health app. Apple introduced this behavior through watchOS 11.6.1 for affected U.S. Series 9, Series 10, and Ultra 2 models.
Blood Oxygen readings are intended for general wellness, not medical use. Availability and behavior vary by market, so the country of purchase matters when comparing used watches.
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Swimming, water resistance, and depth sensing
Series 10 is water resistant to 50 meters under ISO standard 22810:2010 and is IP6X dust resistant. It is suitable for shallow-water activities such as pool and ocean swimming. A water-temperature sensor and depth gauge add useful information for swimmers and surface-water activities.
Rank #4
![Apple Watch Series 10 [GPS, 46mm] - Silver Aluminum Case with Denim Sport Band, S/M (Renewed)](https://m.media-amazon.com/images/I/41QK6T8A0yL._SL160_.jpg)
- This pre-owned product is not Apple certified, but has been professionally inspected, tested and cleaned by Amazon-qualified suppliers.
- There will be no visible cosmetic imperfections when held at an arm’s length. There will be no visible cosmetic imperfections when held at an arm’s length.
- This product will have a battery which exceeds 80% capacity relative to new.
- Accessories will not be original, but will be compatible and fully functional. Product may come in generic Box.
- This product is eligible for a replacement or refund within 90 days of receipt if you are not satisfied.
The Depth app supports a maximum depth of 6 meters (20 feet). It can show current depth, time underwater, water temperature, and maximum depth. Summaries can be reviewed in the Fitness app on iPhone.
Series 10 is not a dive computer. Do not use it for scuba diving, water skiing, high-velocity water activities, or submersion below shallow depths. It does not provide decompression-stop information, gas analysis, or recreational scuba functions.
Water resistance can decline after an impact or with age. Apple advises avoiding soap, solvents, detergents, perfume, lotions, sunscreen, oils, steam rooms, and high-velocity water. Do not treat the 50-meter rating as a guarantee that the watch is safe in every water environment.
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Series 10 launched with watchOS 11. That software introduced the Vitals app, Training Load, more flexible Activity ring controls, sleep apnea notifications, interactive Smart Stack widgets, Check In, the Translate app, new Photos watch-face capabilities, and additional pregnancy-related Cycle Tracking features.
Double Tap can also be used to scroll through supported apps such as Messages, Mail, and Weather. Most of these are watchOS features rather than Series 10-exclusive functions, so some are available on older compatible Apple Watch models too.
Series 10 remains compatible with watchOS 26. Installing watchOS 26 requires an iPhone 11 or later, or an iPhone SE (3rd generation or later), running iOS 26. At launch, the requirement was less demanding: an iPhone XS or later, including the second-generation iPhone SE, running iOS 18.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Which Apple Watch Series 10 should you buy?
| Choose this version | If you… |
|---|---|
| 42mm aluminum | Want the lightest, smaller-case design and the lowest original entry price. |
| 46mm aluminum | Prefer maximum screen space for messages, maps, and workout metrics. |
| Titanium | Want a more premium case and sapphire crystal for better scratch resistance. |
| GPS | Usually have your iPhone nearby and do not want an additional cellular plan. |
| GPS + Cellular | Want to leave the iPhone behind regularly and have carrier support for Apple Watch. |
When buying used, check the battery health, activation-lock status, exact case material, cellular model, included charger, and whether the watch has been exposed to water or a hard impact. A cheap Series 10 with a severely worn battery or locked account is not a bargain.
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Best Value
- STAY CLOSER TO YOUR HEART HEALTH—The most accurate heart rate sensing in a wearable,* Series 12 now measures HRV as often as every five minutes for insights on stress and recovery, and takes background heart rate readings every five seconds.
- A FULL-FEATURED HEALTH TRACKER—Better understand your body with invaluable health insights. View your overnight health metrics with the Vitals app and get a daily sleep score,* track your menstrual cycle,5 and take readings of your blood oxygen.*
- CHECK YOUR READINESS FOR THE DAY—Know when to rest or put yourself to the test. The readiness experience can help you determine your capacity to take on the day by analyzing your recent activity, vitals, and sleep.
- A POWERFUL FITNESS TRACKER—With advanced metrics and motivating features like Pacer, Heart Rate Zones, and Workout Buddy powered by Apple Intelligence from your nearby iPhone8—Series 12 helps you stay active, from running to hiking to strength training.
- KEEP HELP CLOSE AT HAND—A smartwatch that puts your safety first. Series 12 can detect a hard fall or severe car crash, automatically help connect you with emergency services, and notify your emergency contacts.*
What comes in the box?
The standard box contains:
- Apple Watch Series 10.
- Watch band.
- Apple Watch Magnetic Fast Charger to USB-C Cable, 1 meter.
A USB-C power adapter is not included.
Apple Watch Series 10: strengths and limitations
Strengths
- Thin, comfortable case.
- Large, bright display with better angled visibility.
- Fast charging that is particularly useful for overnight sleep tracking.
- Broad health, safety, and fitness feature set.
- Depth and water-temperature sensing without buying an Ultra model.
- 64GB of storage and continued watchOS 26 support.
Limitations
- Only 18 hours of Apple-rated normal battery life.
- Not suitable for scuba diving or high-speed water sports.
- Some health features vary by country and age.
- Blood Oxygen behavior differs on affected U.S. models.
- It is no longer sold as part of Apple’s current main U.S. lineup.
- It requires an iPhone and cannot pair with Android phones.
FAQ
When did Apple Watch Series 10 go on sale?
Apple Watch Series 10 became available on September 20, 2024, following its announcement on September 9, 2024. Its original U.S. starting price was $399.
Is Apple Watch Series 10 still supported?
Yes. Series 10 remains compatible with watchOS 26. Updating to watchOS 26 requires an iPhone 11 or later, or an iPhone SE (3rd generation or later), running iOS 26.
Can Apple Watch Series 10 detect sleep apnea?
It can provide a possible sleep apnea notification after analyzing breathing disturbances over a 30-day evaluation period. You must wear it for at least 10 nights during that period. It does not diagnose or treat sleep apnea.
Can Apple Watch Series 10 be used for scuba diving?
No. Series 10 is suitable for shallow-water activities and its Depth app works to a maximum of 6 meters (20 feet), but it is not a dive computer and should not be used for scuba diving.
Does Apple Watch Series 10 work with Android phones?
No. Apple Watch pairs only with an iPhone. It does not support Android phones.
The Bottom Line
Apple Watch Series 10 remains one of Apple’s most balanced standard watches: thinner than its predecessors, easier to read at an angle, faster to charge, and equipped with meaningful health and water-related upgrades. Its 18-hour battery rating and iPhone-only compatibility still matter, while regional restrictions can affect Blood Oxygen and other health functions.
In 2026, buy it as a previous-generation model rather than assuming it is current. A well-priced Series 10 with healthy battery capacity, the right case size, and an unlocked account can still be an excellent everyday Apple Watch. Compare its price carefully with the current Series 11, SE 3, and Ultra 3 before committing.
Quick Recap
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
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