Like its predecessor, Apple Watch 5, Apple Watch Series 6 is available in two sizes; 44mm and 40mm – the difference between these two is basically the slight differences in size and weight. Beyond that, both models offer the same features. This post compares the difference between Apple Watch Series 6 44mm vs 40mm specs and features to help you decide which size is right for you.
As you may already know, although Watch 6 has the same appearance as its predecessor, it comes with new features such as sleep tracking, blood oxygen monitoring and the Apple S6 chip which Apple claims is 20% faster than Watch 5 or SE. Other features include a handwashing app that reminds you to wash your hands and a hearing protection that alerts you when you have reached the recommended listening dose for the week. New workout modes have been added and the activity app has been redesigned and renamed to the Fitness app with the introduction of a Fitness Plan where you can get 3 months free when you buy an Apple Watch and $9.99/month on a subscription.
Other new features include the family app that allows family members who own an Apple Watch but don’t own an iPhone to still enjoy the benefits of an Apple Watch. the new cycling map app and an improved Siri. See all the features WatchOS 7
Apple Watch Series 6 44mm vs 40mm – Specifications Compared
| Apple Watch Series 6 (44mm) (Cellular) | Apple Watch Series 6 (40mm) (Cellular) | |||||||||||||||||||||||||
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EDITOR'S RATING |
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WHERE TO BUY |  View @ Amazon | View @ Amazon | ||||||||||||||||||||||||
ABOUT DEVICE | ||||||||||||||||||||||||||
| Device name | Apple Watch Series 6 (44mm) (Cellular) | Apple Watch Series 6 (40mm) (Cellular) | ||||||||||||||||||||||||
| Device type | Standalone/Fitness smartwatch | Standalone/Fitness smartwatch | ||||||||||||||||||||||||
| Predessesor | Apple Watch Series 5 | Apple Watch Series 5 | ||||||||||||||||||||||||
| Successor | -- | -- | ||||||||||||||||||||||||
| Released date | September, 2020 | September, 2020 | ||||||||||||||||||||||||
| Ideal for | Unisex | Unisex | ||||||||||||||||||||||||
DISPLAY | ||||||||||||||||||||||||||
| Display type | LTPO OLED | LTPO OLED | ||||||||||||||||||||||||
| Display size | 1.78 inches (44mm) | 1.65 inches (40mm) | ||||||||||||||||||||||||
| Display resolution | 448 x 368 pixels (44mm) | 324 x 394 pixels | ||||||||||||||||||||||||
| Pixel density | -- | -- | ||||||||||||||||||||||||
| Input type | Touchscreen 1 Physical button plus Digital Crown with haptic feedback | Touchscreen 1 Physical button plus Digital Crown with haptic feedback | ||||||||||||||||||||||||
| Always-on | Yes | Yes | ||||||||||||||||||||||||
| Customizable watch face | Yes | Yes | ||||||||||||||||||||||||
BODY | ||||||||||||||||||||||||||
| Shape | Rectangular/curved | Rectangular/curved | ||||||||||||||||||||||||
| Dimension | 44 x 38 x 10.4 mm (44mm) 40 x 34 x 10.4 mm (40mm) | 40 x 34 x 10.4 mm (40mm) | ||||||||||||||||||||||||
| Weight | 36.5 grams | 30.5 grams | ||||||||||||||||||||||||
| Casing material | Stainless steel Aluminum Titanium | Stainless steel Aluminum Titanium | ||||||||||||||||||||||||
| Strap/band material | Solo loop (silicone) Braided loop (Silicone and Polyester) | Solo loop (silicone) Braided loop (Silicone and Polyester) | ||||||||||||||||||||||||
| Bezel Material | Ceramics | Ceramics | ||||||||||||||||||||||||
| Strap size | 125 - 210mm | 125 - 210mm | ||||||||||||||||||||||||
| Interchangeable band | Yes | Yes | ||||||||||||||||||||||||
| Screen protection | Ion-X glass (aluminum) Sapphire (Stainless steel & Titanium) | Ion-X glass (aluminum) Sapphire (Stainless steel & Titanium) | ||||||||||||||||||||||||
| Water resistant/Protection | Yes, IP68, 5ATM | Yes, IP68, 5ATM | ||||||||||||||||||||||||
| Swim-proof | Yes, recommended | Yes, recommended | ||||||||||||||||||||||||
| Color(s) | (Aluminum) Space gray Gold Silver Red Blue (Stainless Steel) Gold PVD Graphite Silver (Titanium) Space black Titanium | (Aluminum) Space gray Gold Silver Red Blue (Stainless Steel) Gold PVD Graphite Silver (Titanium) Space black Titanium | ||||||||||||||||||||||||
MEMORY | ||||||||||||||||||||||||||
| RAM | 1GB | 1GB | ||||||||||||||||||||||||
| Internal storage | 32GB | 32GB | ||||||||||||||||||||||||
| Memory card slot | No | No | ||||||||||||||||||||||||
CONNECTIVITY | ||||||||||||||||||||||||||
| Bluetooth | Bluetooth v5.0 | Bluetooth v5.0 | ||||||||||||||||||||||||
| Bluetooth calling | Yes | Yes | ||||||||||||||||||||||||
| Wi-Fi | Yes | Yes | ||||||||||||||||||||||||
| NFC | Yes | Yes | ||||||||||||||||||||||||
| Payment system | Apple Pay | Apple Pay | ||||||||||||||||||||||||
| GPS | A-GPS/GLONASS/GALILEO/QZSS | A-GPS/GLONASS/GALILEO/QZSS | ||||||||||||||||||||||||
CELLULAR TECHNOLOGY | ||||||||||||||||||||||||||
| Technology | 2G/3G/4G | 2G/3G/4G | ||||||||||||||||||||||||
| SIM | e-SIM | e-SIM | ||||||||||||||||||||||||
| Band | __ | __ | ||||||||||||||||||||||||
NOTIFICATIONS | ||||||||||||||||||||||||||
| Email alert | Yes | Yes | ||||||||||||||||||||||||
| SMS alert | Yes | Yes | ||||||||||||||||||||||||
| Calls alert | Yes | Yes | ||||||||||||||||||||||||
| Event reminder | Yes | Yes | ||||||||||||||||||||||||
| Weather | Yes | Yes | ||||||||||||||||||||||||
| Third-party apps | Yes | Yes | ||||||||||||||||||||||||
| Text response | Yes | Yes | ||||||||||||||||||||||||
FITNESS TRACKING | ||||||||||||||||||||||||||
| Sleep apnea | No | No | ||||||||||||||||||||||||
| Sleep tracking | Yes | Yes | ||||||||||||||||||||||||
| Steps | Yes | Yes | ||||||||||||||||||||||||
| Floors climbed | Yes | Yes | ||||||||||||||||||||||||
| Heart rate monitoring | Yes | Yes | ||||||||||||||||||||||||
| Calories | Yes | Yes | ||||||||||||||||||||||||
| Distance | Yes | Yes | ||||||||||||||||||||||||
| Stress | Yes | Yes | ||||||||||||||||||||||||
| VO2 Max. | Yes | Yes | ||||||||||||||||||||||||
| Blood oxygen | Yes | Yes | ||||||||||||||||||||||||
| Blood pressure | No | No | ||||||||||||||||||||||||
| Menstrual cycle tracking | Yes | Yes | ||||||||||||||||||||||||
| Swim tracking | Yes | Yes | ||||||||||||||||||||||||
| Under-water heart rate tracking | __ | __ | ||||||||||||||||||||||||
| Preloaded maps | No | No | ||||||||||||||||||||||||
| On-screen workout modes | No | No | ||||||||||||||||||||||||
| Triathlon mode | Yes | Yes | ||||||||||||||||||||||||
| ECG Tracking | Yes | Yes | ||||||||||||||||||||||||
| Preloaded sport modes | Yes | Yes | ||||||||||||||||||||||||
| Safety tracking | Yes | Yes | ||||||||||||||||||||||||
MEDIA | ||||||||||||||||||||||||||
| Audio | mp3/mp4 | mp3/mp4 | ||||||||||||||||||||||||
| Music streaming | Yes | Yes | ||||||||||||||||||||||||
| Bluetooth music | Yes | Yes | ||||||||||||||||||||||||
| Radio | No | No | ||||||||||||||||||||||||
| Loudspeaker | Yes | Yes | ||||||||||||||||||||||||
| Microphone | Yes | Yes | ||||||||||||||||||||||||
| Camera | No | No | ||||||||||||||||||||||||
SENSORS | ||||||||||||||||||||||||||
| Accelerometer | Yes | Yes | ||||||||||||||||||||||||
| Barometer/Altimeter | Yes | Yes | ||||||||||||||||||||||||
| Heart rate monitor (HRM) | Yes | Yes | ||||||||||||||||||||||||
| Compass | Yes | Yes | ||||||||||||||||||||||||
| Gyroscope | Yes | Yes | ||||||||||||||||||||||||
| Ambient light | Yes | Yes | ||||||||||||||||||||||||
| Pulse Oximeter | Yes | Yes | ||||||||||||||||||||||||
| ECG | Yes | Yes | ||||||||||||||||||||||||
| Thermometer | No | No | ||||||||||||||||||||||||
| Other sensors | __ | __ | ||||||||||||||||||||||||
PLATFORM | ||||||||||||||||||||||||||
| Operating system (OS) | WatchOS 7 | WatchOS 7 | ||||||||||||||||||||||||
| Chipset | Apple S6, 64bit | Apple S6, 64bit | ||||||||||||||||||||||||
| CPU | Dual core | Dual core | ||||||||||||||||||||||||
| GPU | PowerVR | PowerVR | ||||||||||||||||||||||||
BATTERY | ||||||||||||||||||||||||||
| Type of battery | Non-removable Li-ion battery | Non-removable Li-ion battery | ||||||||||||||||||||||||
| Battery capacity | -- | -- | ||||||||||||||||||||||||
| Battery life | Mixed usage: 18 hrs | Mixed usage: 18 hrs | ||||||||||||||||||||||||
| Charging type | Magnetic charging | Magnetic charging | ||||||||||||||||||||||||
| Charging time | About 1-2 hours | About 1-2 hours | ||||||||||||||||||||||||
| Battery saver mode | Yes | Yes | ||||||||||||||||||||||||
| Solar power | No | No | ||||||||||||||||||||||||
| Rapid charging | No | No | ||||||||||||||||||||||||
CLOCK FEATURES | ||||||||||||||||||||||||||
| Time/Date | Yes | Yes | ||||||||||||||||||||||||
| Stopwatch | Yes | Yes | ||||||||||||||||||||||||
| Alarm | Yes | Yes | ||||||||||||||||||||||||
OTHER FUNCTIONS | ||||||||||||||||||||||||||
| Control camera | Yes | Yes | ||||||||||||||||||||||||
| Music control | Yes | Yes | ||||||||||||||||||||||||
| Find phone | Yes | Yes | ||||||||||||||||||||||||
MISC | ||||||||||||||||||||||||||
| Compatibility | iPhone 5s+ iOS 12+ | iPhone 5s+ iOS 12+ | ||||||||||||||||||||||||
| Companion app | Apple watch APP | Apple watch APP | ||||||||||||||||||||||||
| Voice command | Yes | Yes | ||||||||||||||||||||||||
BOX CONTENTS | ||||||||||||||||||||||||||
| Apple Watch Series 6 (44mm) | Apple Watch Series 6 (40mm) | |||||||||||||||||||||||||
| Straps | Straps | |||||||||||||||||||||||||
| Magnetic charging cable + USB adapter | Magnetic charging cable + USB adapter | |||||||||||||||||||||||||
| Quick start guide | Quick start guide | |||||||||||||||||||||||||
| NOTE: We can't guarantee that all the information on this table are 100% correct. Read full disclaimer. Please, report an error. | ||||||||||||||||||||||||||
| Official Site | Official Site | |||||||||||||||||||||||||
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(Apple Watch Series 6 GPS vs Cellular – Features Compared
| FEATURES | Apple Watch Series 6 (GPS) | Apple Watch Series 6 (Cellular) |
|---|---|---|
| Display | 1.78 inches 2.5x brighter than SE | 1.78 inches 2.5x brighter than SE |
| Share Watch Faces | Yes | Yes |
| Add Widget to Watch Face | Yes | Yes |
| Always-On Display | Yes | Yes |
| Materials | Aluminum Stainless steel Titanium | Aluminum Stainless steel Titanium |
| Storage | 32GB | 32GB |
| Memoji App Allows you to send emojis as sticker in messages or use it as your watch face. | Yes | Yes |
| Family Setup Allows family members who don't own an iPhone to still enjoy all the features of an Apple Watch by adding and assigning numbers to different Apple Watches which can be managed from a single iPhone. | No | Yes |
| Smart Money With Apple Cash | Yes | Yes |
| Find my App A feature that lets you know the location of family members. | No | Yes |
| Cycling Maps A feature that guides cyclists by showing direction, suggesting lanes, and more. | Yes | Yes |
| Hearing Protection Alerts you when you have reached the maximum recommended listening dose for the week, and also allows you to set maximum volume for your headphone. | Yes | Yes |
| Handwashing App Guides you to wash your hand for up to 20 seconds recommended by WHO. Also reminds you to wash your hands when you get home. | Yes | Yes |
| Sleep Tracking | Yes | Yes |
| Incidental Fall Detection | No | Yes (Cellular) |
| International Emergency Calling Allow you to call emergency contacts almost anywhere in the world. | No | Yes (Cellular) |
| Blood Oxygen Tracking Monitors your blood oxygen to determine how well your blood absorbs oxygen. | Yes | Yes |
| ECG tracking Allows you to take an electrocardiogram test on your wrist that's capable of detecting irregular heart rhythm and can help you prevent atrial fibrillations. | Yes | Yes |
| Fitness+ Apple introduces a fitness service that features workout plans and coaching from professionals around the world. $9.99/month after the first 3 months. | Yes | Yes |
| Processor | S6 chip dual-core processor and W3 wireless chip 20% faster than S5 | S6 chip dual-core processor and W3 wireless chip 20% faster than S5 |
Which Size is Right For You?
It boils down to which size is right for you, the best way to know is to measure your wrist size or compare with other watches you’ve worn to determine that. I’ve always recommended the 40mm for women and those with smaller wrist sizes and the 44mm for men and for those with bigger wrist size. You can watch the video below to learn how to properly measure your wrist size.
Apple Watch Series 6 Prices
Hi! I’m Jude, the chief editor at Smartwatchseries.com
I’m a graduate of biochemistry, a 3D artist and a passionate fitness enthusiast. On here, I and other smartwatch fans work hard to help you find the right smartwatch for you with our guides, reviews, and comparisons.
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