Last Updated & Fact Checked: March 21, 2026
Are you trying to decide between the Apple Watch Series 4 and the Apple Watch Series 6?
Product Versus will provide you with all the product details so you can quickly compare the facts to find which product is right for you – the Apple Watch Series 4 or the Apple Watch Series 6 – and find out exactly what the differences are.
Both the Apple Watch Series 4 and the Apple Watch Series 6 are quality products, so read on to find out which one is best for your needs!
Apple Watch Series 4 quick facts
Apple Watch Series 6 quick facts
Apple Watch Series 4 product details
Bestseller No. 1
Apple Watch Series 7 (GPS, 41mm) Starlight Aluminum Case with Starlight Sport Band, Regular (Renewed)
- Always-on Retina display has nearly 20% more screen area than Series 6, making everything easier to see and use than ever before
- The most crack-resistant front crystal yet on an Apple Watch, IP6X dust resistance, and swimproof design just to name a few awesome features
- Take an ECG anytime, anywhere - Get high and low heart rate, and irregular heart rhythm notifications - Measure your blood oxygen with a powerful sensor and app
- Track your daily activity on Apple Watch, and see your trends in the Fitness app - Stay in the moment with the new Mindfulness app, and reach your sleep goals with the Sleep app
- Track new tai chi and pilates workouts, in addition to favorites like running, yoga, swimming, and dance - Sync your favorite music, podcasts, and audiobooks - Pay instantly and securely from your wrist with Apple Pay
Bestseller No. 2
Apple Watch Series 5 (GPS, 40MM) - Gold Aluminum Case with Pink Sand Sport Band (Renewed)
- GPS Only
- Always-On Retina display
- 30% larger screen
- Swimproof
- Electrical and optical heart sensors
Bestseller No. 3
Apple Watch Series 6 (GPS, 44mm) - Space Gray Aluminum Case with Black Sport Band (Renewed)
- GPS model lets you take calls and reply to texts from your wrist
- Measure your blood oxygen with an all-new sensor and app
- Check your heart rhythm with the ECG app
- The Always-On Retina display is 2.5x brighter outdoors when your wrist is down
- S6 SiP is up to 20% faster than Series 5
Apple Watch Series 6 product details
Bestseller No. 1
Apple Watch Series 6 (GPS, 44mm) - Space Gray Aluminum Case with Black Sport Band (Renewed)
- GPS model lets you take calls and reply to texts from your wrist
- Measure your blood oxygen with an all-new sensor and app
- Check your heart rhythm with the ECG app
- The Always-On Retina display is 2.5x brighter outdoors when your wrist is down
- S6 SiP is up to 20% faster than Series 5
Bestseller No. 2
Apple Watch Series 6 (GPS, 40mm) - Space Gray Aluminum Case with Black Sport Band (Renewed)
- LEAVE YOUR PHONE IN YOUR POCKET: Apple Watch Series 6 GPS Model lets you call, text, and get directions from your wrist, while leaving your phone in your pocket. It offers multiple connectivity options, including: Bluetooth, Wi-Fi, and NFC to suit all of your possible needs.
- ALWAYS-ON RETINA DISPLAY: You no longer need to raise your wrist or touch the screen to see the time or other information on your watch face, because the display never sleeps. All you need to do is glance to find the time or your workout metrics right there where you want them.
- ECG ON YOUR WRIST: With the ECG app, Apple Watch Series 6 is capable of generating an ECG similar to a single-lead electrocardiogram. It’s a momentous achievement for a wearable device that can provide data for doctors and peace of mind for you wherever may be during the day.
- WORKOUTS THAT DON'T QUIT: Cycling, yoga, swimming, high-intensity interval training.the list goes on. You me it, Apple Watch measures it. Set workout-specific goals, see full summaries when you’re done, and track how you’re trending over time in the Activity app on your iPhone.
- GET LOST IN YOUR MUSIC: With Apple Music on your wrist, you’ve got 60 million tracks of musical motivation to take you places. You can also catch up on the latest podcasts or listen to an audiobook if that's your thing. Stream everything you need right from your watch, even without your phone.
Bestseller No. 3
Apple Watch Series 6 (GPS, 44mm) - Blue Aluminum Case with Deep Navy Sport Band (Renewed)
- LEAVE YOUR PHONE IN YOUR POCKET: Apple Watch Series 6 GPS Model lets you call, text, and get directions from your wrist, while leaving your phone in your pocket. It offers multiple connectivity options, including: Bluetooth, Wi-Fi, and NFC to suit all of your possible needs.
- ALWAYS-ON RETINA DISPLAY: You no longer need to raise your wrist or touch the screen to see the time or other information on your watch face, because the display never sleeps. All you need to do is glance to find the time or your workout metrics right there where you want them.
- ECG ON YOUR WRIST: With the ECG app, Apple Watch Series 6 is capable of generating an ECG similar to a single-lead electrocardiogram. It’s a momentous achievement for a wearable device that can provide data for doctors and peace of mind for you wherever may be during the day.
- WORKOUTS THAT DON'T QUIT: Cycling, yoga, swimming, high-intensity interval training.the list goes on. You me it, Apple Watch measures it. Set workout-specific goals, see full summaries when you’re done, and track how you’re trending over time in the Activity app on your iPhone.
- GET LOST IN YOUR MUSIC: With Apple Music on your wrist, you’ve got 60 million tracks of musical motivation to take you places. You can also catch up on the latest podcasts or listen to an audiobook if that's your thing. Stream everything you need right from your watch, even without your phone.
New products & alternatives to the Apple Watch Series 4 and the Apple Watch Series 6
New
![Apple Watch SE 3 [GPS, 40mm] Starlight Aluminum Case with Starlight Sport Band, S/M (Renewed)](https://m.media-amazon.com/images/I/31jXfpjQksL.jpg)
Apple Watch SE 3 [GPS, 40mm] Starlight Aluminum Case with Starlight Sport Band, S/M (Renewed)
- 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.
New
![Apple Watch Series 11 [GPS, 46mm] Space Gray Aluminum Case with Black Sport Band, M/L (Renewed)](https://m.media-amazon.com/images/I/31Q5fknJuZL.jpg)
Apple Watch Series 11 [GPS, 46mm] Space Gray Aluminum Case with Black Sport Band, M/L (Renewed)
- 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.
New
![Apple Watch SE 3 [GPS + Cellular, 40mm] Midnight Aluminum Case with Black Sport Band, M/L (Renewed)](https://m.media-amazon.com/images/I/41MwgW7eUVL.jpg)
Apple Watch SE 3 [GPS + Cellular, 40mm] Midnight Aluminum Case with Black Sport Band, M/L (Renewed)
- 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.
New
Apple Watch SE (3nd Gen) (GPS, 40mm) - Midnight Aluminum Case with Midnight Sport Band, S/M (Renewed)
- 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.
New
![Apple Watch Series 11 [GPS 42mm] Smartwatch with Rose Gold Aluminum Case with Light Blush Sport Band - S/M., Fitness Tracker, Water Resistant (Renewed)](https://m.media-amazon.com/images/I/31J+F-pXaWL.jpg)
Apple Watch Series 11 [GPS 42mm] Smartwatch with Rose Gold Aluminum Case with Light Blush Sport Band - S/M., Fitness Tracker, Water Resistant (Renewed)
- HYPERTENSION NOTIFICATIONS — Apple Watch Series 11 can spot signs of chronic high blood pressure and notify you of possible hypertension.*
- KNOW YOUR SLEEP SCORE — Sleep score provides an easy way to help track and understand the quality of your sleep, so you can make it more restorative.
- EVEN MORE HEALTH INSIGHTS — Take an ECG anytime.* Get notifications for a high and low heart rate, an irregular rhythm,* and possible sleep apnea.* View overnight health metrics with the Vitals app* and take readings of your blood oxygen.*
- STUNNING DESIGN — Thin and lightweight, Series 11 is comfortable to wear around the clock — while exercising and even when you’re sleeping, so it can help track your key metrics.
- A POWERFUL FITNESS PARTNER — With advanced metrics for all your workouts, plus features like Pacer, Heart Rate Zones, training load, Workout Buddy powered by Apple Intelligence from your nearby iPhone,* and more. Series 11 also comes with three months of Apple Fitness+ free.*
Our conclusion on the Apple Watch Series 4 vs Apple Watch Series 6
Both the Apple Watch Series 4 and the Apple Watch Series 6 are high quality products and we are sure you will be happy with either one. In the end it comes down to your budget and the value for money you are looking for.
Either way, the Apple Watch Series 4 and the Apple Watch Series 6 are both excellent products that will more than do their job!