Fitness watches · Model guide · Maker specs
Apple Watch Series 7
Apple Watch Series 7 is worth keeping, not seeking out: it brought the bigger 41mm and 45mm screens, but it doesn't get watchOS 27.
In short
Apple Watch Series 7 is worth keeping, not seeking out: it brought the bigger 41mm and 45mm screens, but it doesn't get watchOS 27. It has a 1,000-nit Always-On display, ECG, Blood Oxygen, Fall Detection, 32GB of storage and an 18-hour battery. It also lacks the Crash Detection and wrist temperature sensing Series 8 added in 2022; if you're shopping, look at Series 9 or later, which still gets watchOS 27.
Product images
Apple Watch Series 7, from its Amazon listing.
Credit: Amazon.com (Associates Program). Amazon listing
Product image from the Amazon listing.
Who it is for
- Series 7 owners happy with what it does today. ECG, Blood Oxygen, Fall Detection and the Always-On screen keep working, though it won't get watchOS 27.
- Anyone offered one for very little who only needs the basics: Apple Pay, heart-rate and ECG readings, Fall Detection and a battery that lasts the day.
Who should skip it
- Anyone buying a watch to keep for years. Series 7 doesn't get watchOS 27; Series 9 is the oldest Series that does.
- Anyone who wants Crash Detection or wrist temperature sensing. Series 8 added both in 2022.
- Anyone who wants a brighter screen or more storage. Later Series models reach 2,000 nits and 64GB, against 1,000 nits and 32GB here.
- Anyone without an iPhone. Apple lists iPhone 6s or later, and at launch Series 7 needed iOS 15 or later.
What sets it apart
- The first Series in 41mm and 45mm, with a bigger Always-On screen and thinner borders: 904 and 1,143 sq mm of display, at 352 × 430 and 396 × 484 pixels.
- IP6X dust resistance, which Apple didn't claim for Series 6, on top of 50m water resistance.
- Faster charging: Apple says Series 7 charges 33 percent faster than Series 6 with its USB-C Magnetic Fast Charger cable, though not in every region.
- A titanium option, in Titanium or Space Black, which Series 8 dropped.
Caveats
- Battery is a one-day affair. Apple rates Series 7 for up to 18 hours and gives no Low Power Mode, workout or 80%-charge figures.
- Blood Oxygen is a wellness feature, not for medical use, and the ECG app is for people 22 and older, with regional limits.
Key specs
In the same order on every watch page, so you can compare models.
| Spec | Value | Source and notes |
|---|---|---|
| Display size | 41mm: 904 sq mm; 45mm: 1,143 sq mm | Apple Series 7 tech specs |
| Display type | Always-On Retina LTPO OLED; ceramic and sapphire crystal back | Apple Series 7 tech specs |
| Display resolution | 41mm: 352 × 430 px; 45mm: 396 × 484 px | Apple Series 7 tech specs |
| Peak brightness | 1,000 nits | Apple Series 7 tech specsApple's rating; it gives no minimum brightness. |
| Always-On display | Yes; Always-On Retina LTPO OLED | Apple Series 7 tech specs |
| Case size(s) | 41mm and 45mm | Apple Series 7 tech specs |
| Case material | Aluminum, stainless steel or titanium | Apple Series 7 tech specs |
| Case dimensions | 41mm: 41 × 35 × 10.7mm; 45mm: 45 × 38 × 10.7mm | Apple Series 7 tech specs |
| Weight | 41mm: aluminum 32.0 g, stainless steel 42.3 g, titanium 37.0 g. 45mm: aluminum 38.8 g, stainless steel 51.5 g, titanium 45.1 g | Apple Series 7 tech specsCase only, without a band. Apple doesn't split GPS and cellular weights. |
| Finishes | Aluminum: Midnight, Starlight, Green, Blue, (PRODUCT)RED. Stainless steel: Graphite (PVD), Silver, Gold (PVD). Titanium: Titanium, Space Black (DLC). Nike in midnight or starlight aluminum; Hermès in stainless steel | Apple Series 7 tech specs |
| Chip / processor | S7 with 64-bit dual-core processor; W3 wireless chip; U1 (Ultra Wideband) | Apple Series 7 tech specs |
| On-device storage | 32GB | Apple Series 7 tech specs |
| Battery, normal use | Up to 18 hours | Apple Series 7 tech specs |
| Charging | 1m Magnetic Fast Charger to USB-C cable; 33 percent faster than Series 6, Apple says; time to 80% not published | Apple Series 7 tech specs; Apple Newsroom, 2021-09-14 |
| Water resistance | 50m (ISO 22810:2010); shallow-water swimming, not scuba, waterskiing or high-velocity water sports | Apple Series 7 tech specs |
| GNSS / GPS | GPS, GLONASS, Galileo, QZSS and BeiDou | Apple Series 7 tech specs |
| Cellular | LTE and UMTS on GPS + Cellular models (plan required) | Apple Series 7 tech specs |
| Heart rate | Third-generation optical heart sensor and electrical heart sensor | Apple Series 7 tech specs |
| Blood oxygen (SpO2) | Blood Oxygen sensor and app (wellness use, not medical) | Apple Series 7 tech specs |
| Temperature sensing | No | Apple Series 7 tech specs; Apple's Series 8 announcementWrist temperature sensing arrived with Series 8 in 2022. |
| ECG | ECG app with the electrical heart sensor (ages 22 and up; region limits; not on SE) | Apple Series 7 tech specs |
| Other sensors | Compass; always-on altimeter; accelerometer up to 32 g-forces with Fall Detection; gyroscope; ambient light sensor | Apple Series 7 tech specs |
| Durability | 50m water resistance; IP6X dust resistance; no MIL-STD rating | Apple Series 7 tech specs |
| Safety alerts | Emergency SOS; international emergency calling (cellular models); Fall Detection; no Crash Detection | Apple Series 7 tech specs; Apple Series 8 tech specs (111848)Crash Detection arrived with Series 8 in 2022. |
| Operating system | Launched with watchOS 8; Series 7 doesn't get watchOS 27 | Apple Newsroom, 2021-09-14; Apple Newsroom, Series 12 launch (watchOS 27 devices) |
| Phone compatibility | iPhone 6s or later with the latest iOS; at launch (watchOS 8), iPhone 6s or later with iOS 15 or later | Apple Series 7 tech specs; Apple Newsroom, 2021-09-14 |
| Wireless (Wi-Fi / Bluetooth) | Wi-Fi 802.11b/g/n, 2.4GHz and 5GHz; Bluetooth 5.0; U1 Ultra Wideband chip | Apple Series 7 tech specsSeries 8 moved to Bluetooth 5.3. |
| NFC / contactless payments | Apple Pay; GymKit | Apple Series 7 tech specs |
| Band fitting | Apple Watch band fitting; the box has one band or loop and a 1m Magnetic Fast Charger to USB-C cable | Apple Series 7 tech specs |
| US price at launch | Starts at $399 (US) | Apple Newsroom, 2021-09-14 |
| Price band | Older everyday watch ($400–$500 US launch) | Based on Apple's $399 launch price |
| Announced | 14 September 2021 | Apple Newsroom |
| Availability | Announced 14 September 2021; orders from Friday, 8 October 2021; US stores from Friday, 15 October 2021; since discontinued | Apple Newsroom, 2021-09-14 and 2021-10-08 |
Apple Watch Series 7 extras
Specs only this model has.
| Spec | Value | Source and notes |
|---|---|---|
| 41mm and 45mm redesign | First Series case in 41mm and 45mm, with a larger Always-On screen and thinner borders; battery still rated for 18 hours | Apple Series 7 tech specs; Apple Newsroom, 2021-09-14 |
| IP6X dust resistance | Yes; Apple doesn't list IP6X for Series 6 | Apple Series 7 tech specs |
| Faster charging | 33 percent faster than Series 6, Apple says, though not in every region; time to 80% not published | Apple Newsroom, 2021-09-14, footnote 5 |
| watchOS 27 | Doesn't get watchOS 27 | Apple Newsroom, Series 12 launch (watchOS 27 devices) |
| In the box | Apple Watch Series 7; band or loop; 1m Magnetic Fast Charger to USB-C cable | Apple Series 7 tech specs |
What Series 7 misses against newer models
Series 8 arrived a year later in the same 41mm and 45mm sizes. It added Crash Detection and wrist temperature sensing, but it doesn’t get watchOS 27 either; that starts with Series 9.
| Spec | Series 7 | Series 8 |
|---|---|---|
| Case | 41mm or 45mm; aluminum, stainless steel or titanium | 41mm or 45mm; aluminum or stainless steel |
| Chip and storage | S7, 32GB | S8, 32GB |
| Bluetooth | 5.0 | 5.3 |
| Crash Detection | No (accelerometer up to 32 g) | Yes (up to 256 g) |
| Wrist temperature | No | Yes, from 2022 |
| watchOS 27 | No | No |
Battery and charging
| Mode | Series 7 |
|---|---|
| Normal use | Up to 18 hours |
| Low Power Mode | Not published |
| GPS workout | Not published |
| Fast charge | 33% faster than Series 6, Apple says; time to 80% not published |
Apple’s 18-hour rating is the same as Series 6’s, so this is a watch you charge every night. The 1m Magnetic Fast Charger to USB-C cable came in the box, and the faster charging isn’t available in every region.
Size, weight and materials
Both sizes are 10.7mm thick. Aluminum is the lightest, at 32.0 grams for the 41mm and 38.8 grams for the 45mm; titanium comes in at 37.0 and 45.1 grams, and stainless steel at 42.3 and 51.5 grams, all without a band. Titanium is the rarer pick: Series 8 dropped it and came only in aluminum and stainless steel.
Launch and price
Apple announced Series 7 on 14 September at $399, but it arrived late: orders opened on 8 October and US stores had it from 15 October 2021. Apple has since discontinued it, so you’ll be buying one secondhand or as unsold stock. Weigh any price against a Series 9 or later, which still gets watchOS 27, and check the watch’s condition and what’s in the box before you buy.
Sources
- Amazon product listing — accessed 2026-09-20
- Apple Support — Apple Watch Series 7 tech specs (111909) — accessed 2026-09-19
- Apple Newsroom — Apple reveals Apple Watch Series 7, featuring the largest, most advanced display — accessed 2026-09-19
- Apple Newsroom — Apple Watch Series 7 orders start Friday, October 8 — accessed 2026-09-19
- Apple — Guidelines for Using Apple Trademarks and Copyrights — accessed 2026-09-19
Frequently asked questions
Does Series 7 get watchOS 27?
No. watchOS 27 starts at Series 9, two generations newer, and also covers SE 3 and Ultra 2 or later. Series 7 launched with watchOS 8.
Does Series 7 have Crash Detection or temperature sensing?
No. It has Fall Detection and Emergency SOS. Crash Detection arrived in 2022 with Series 8 and SE (2nd generation), and Series 8 also added wrist temperature sensing.
Can you swim with Series 7?
Yes, in shallow water. It's water resistant to 50m under ISO 22810:2010, which covers swimming but not scuba diving, waterskiing or other high-velocity water sports.
Is Series 7 bigger than Series 6?
Yes. Series 7 moved to 41mm and 45mm cases with a larger screen and thinner borders; Series 6 was the last flagship Series at 40mm and 44mm.
Official product page: Apple Watch Series 7. Tech specs: Apple Watch Series 7 specs.