Apple Watch SE 3 (40mm GPS, Midnight Aluminum, Midnight Sport Band)
🔥 #10 in Smartwatches · New Best entry smartwatch for iPhone users
Apple Watch SE 3 40mm GPS + Cellular Starlight
Apple 4.4
#10
in Smartwatches
$289 →
As of Jul 13, 2026
AI-estimated. See how we score. How we score Affiliate link — we may earn a commission
01 / Spec
Top features
Platform OswatchOS 10+
Phone CompatibilityiPhone XS and later
Display1.78" LTPO OLED Retina (410×502 px), always-on
The Apple Watch SE (3rd Gen) is a GPS + Cellular smartwatch with a 40mm aluminum case and Sport Band in Starlight finish. Runs watchOS and pairs exclusively with iPhone.
Key features:
- Always-on Retina LTPO OLED display (410×502 px)
- Health tracking: heart rate, blood oxygen (SpO2), ECG, sleep, temperature sensing
- Built-in GPS + cellular connectivity
- 5ATM water resistance (swim-proof)
- ~18-hour battery life per charge
- Apple Health, Fitness+, Apple Pay integration
- S8 chip with neural engine
Platform & ecosystem: watchOS 10+; tight integration with iPhone, Mac, iPad ecosystem. Thousands of third-party apps via App Store.
For whom: iPhone users seeking reliable, mainstream smartwatch fitness tracking without paying for the Ultra. Ideal for everyday health monitoring, notifications, and light workouts. Not a dedicated fitness watch—more lifestyle + convenience.
Caveats: Daily charging required; no always-on activity metrics screen; iPhone-only (no Android pairing).
02 / Signals
Why it's hot
Best-selling entry smartwatch—Apple health tracking at a friendly price.
- Value for money 91
- Review rating & velocity 98
- Community sentiment 95
- Brand reputation 100
- Search heat 87
- Est. return & defect rate 90
03 / Verdict
Pros & cons
Pros
- Accurate heart rate and SpO2 monitoring
- Seamless iPhone integration and ecosystem
- Bright, responsive always-on display
- Fast performance and reliable app ecosystem
- 5ATM water resistance
- Strong brand support and longevity
Cons
- Requires daily charging
- iPhone-exclusive (no Android compatibility
- No ECG on base model in some regions
- Limited battery vs. Garmin/Amazfit rivals
- No always-on fitness complications
Platform OswatchOS 10+
Phone CompatibilityiPhone XS and later
Display1.78" LTPO OLED Retina (410×502 px), always-on
Case Size40mm aluminum
Battery~18 hours
GpsBuilt-in GPS + Cellular
Health SensorsHeart rate, SpO2, ECG, sleep, temperature, motion
Water Resistance5ATM (swim-proof)
ConnectivityGPS + Cellular (LTE)
Weight~38g
05 / Your take
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05 / Compare
Compare the best alternative
One useful head-to-head in Smartwatches, with the rows most likely to separate the contenders.
Open full comparison → 
Apple Watch Series 11 46mm GPS – Jet Black Aluminum
Battery (days)
18 hours (daily charging required) Longest battery ~18 hours / daily charge
App Ecosystem
watchOS App Store, Apple Health, strong integration Extensive App Store, payments, Siri, smart home
Display
Retina LTPS with always-on (SE 3 refresh) 1.9" always-on AMOLED, 486×594px, bright
06 / Rivals
Compare with
07 / Variations
Other colors & sizes
Top pick
Apple Watch SE 3 (40mm GPS, Midnight Aluminum, Midnight Sport Band)
Midnight Aluminum Case with Midnight Sport Band · 40mm case + Small/Medium band · GPS · Without AppleCare+
#1 in Smartwatches
Apple Watch SE 3 (44mm GPS + Cellular)
Midnight Aluminum Case with Midnight Sport Band · 44mm case + Medium/Large band · GPS + Cellular · Without AppleCare+
#2 in Smartwatches
Apple Watch SE 3 40mm GPS + Cellular
Midnight Aluminum Case with Midnight Sport Band · 40mm case + Small/Medium band · GPS + Cellular · Without AppleCare+
#3 in Smartwatches
Apple Watch SE 3 44mm GPS with Midnight Band + AppleCare+
Midnight Aluminum Case with Midnight Sport Band · 44mm case + Medium/Large band · GPS · With AppleCare+ (2 Years)
#6 in Smartwatches
Apple Watch SE 3 40mm GPS
Starlight Aluminum Case with Starlight Sport Band · 40mm case + Small/Medium band · GPS · Without AppleCare+
#7 in Smartwatches
Apple Watch SE 3 44mm GPS
Midnight Aluminum Case with Midnight Sport Band · 44mm case + Medium/Large band · GPS · Without AppleCare+
#8 in Smartwatches
Apple Watch SE 3 44mm GPS – Starlight Aluminum
Starlight Aluminum Case with Starlight Sport Band · 44mm case + Medium/Large band · GPS · Without AppleCare+
#9 in Smartwatches
Apple Watch SE 3 44mm GPS + Cellular
Starlight Aluminum Case with Starlight Sport Band · 44mm case + Medium/Large band · GPS + Cellular · Without AppleCare+
#11 in Smartwatches
Apple Watch SE 3 40mm GPS
Midnight Aluminum Case with Midnight Sport Band · 40mm case + Small/Medium band · GPS · With AppleCare+ (2 Years)
#12 in Smartwatches
![Apple Watch SE 3 [GPS 40mm] Smartwatch with Starlight Aluminium Case with Starlight Sport Band - S/M. Fitness and Sleep Trackers, Heart Rate Monitor with AppleCare+ (2 Years)](https://m.media-amazon.com/images/I/31H1iKtgPdL._SL500_.jpg)
Apple Watch SE 3 [GPS 40mm] Smartwatch with Starlight Aluminium Case with Starlight Sport Band - S/M. Fitness and Sleep Trackers, Heart Rate Monitor with AppleCare+ (2 Years)
Starlight Aluminum Case with Starlight Sport Band · 40mm case + Small/Medium band · GPS · With AppleCare+ (2 Years)
View on retailer
![Apple Watch SE 3 [GPS 44mm] Smartwatch with Starlight Aluminium Case with Starlight Sport Band - M/L. Fitness and Sleep Trackers, Heart Rate Monitor with AppleCare+ (2 Years)](https://m.media-amazon.com/images/I/31rJBF9ytOL._SL500_.jpg)
Apple Watch SE 3 [GPS 44mm] Smartwatch with Starlight Aluminium Case with Starlight Sport Band - M/L. Fitness and Sleep Trackers, Heart Rate Monitor with AppleCare+ (2 Years)
Starlight Aluminum Case with Starlight Sport Band · 44mm case + Medium/Large band · GPS · With AppleCare+ (2 Years)
View on retailer
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