Apple Watch SE 3 vs Apple Watch Series 7 Aluminum
Comparing 2 products
Basic Information
General Overview
Device Type
Bar
Watch
Model
Apple Watch SE 3
Apple Watch Series 7 Aluminum
Announced
2025, September 09
2021, October
Released
2025, September 09
2021, October
Status
Available
Available
Estimate Price
€ 268.98
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Design
Type
Bar
Bar
Dimensions
44 x 38 x 10.7 mm (1.73 x 1.50 x 0.42 in)
45 x 38 x 10.7 mm (1.77 x 1.50 x 0.42 in)
Weight
26.4 g or 33 g (1.16 oz)
32 g (41mm), 38.8 g (45mm) (1.13 oz)
Protection
Glass front, plastic/sapphire crystal back, aluminum frame
Glass front, ceramic/sapphire crystal back, aluminum frame
50m water resistant
IP6X certified
Colors
Midnight, Starlight
Starlight, Midnight, Blue, Green, Red
Display
Display Type
OLED
OLED
Size
1.78 inches
1.78 inches, 10.0 cm2 (~60.0% screen-to-body ratio)
Resolution
448 x 368 pixels
484 x 396 pixels
Display Colors
1 Million+
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Pixel Density
326 ppi density
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Touch Screen
Yes
Yes
Display Protection
Ion-X strengthened glass (2025 gen)
Ion-X strengthened glass
Features
1000 nits (peak)
Always-on display
Software
OS
watchOS 26
WatchOS 8.0
Hardware
Chipset
Apple S10
Apple S7
CPU
Dual-core
Dual-core
GPU
PowerVR
PowerVR
RAM
2 GB
Unspecified
Internal Storage
64GB
32 GB
Card Slot
No
No
Sensors
Accelerometer, gyro, heart rate (2nd gen), barometer, always-on altimeter, compass, temperature (body)
Accelerometer, gyro, heart rate (3rd gen), barometer, always-on altimeter, compass, SpO2, VO2max
Natural language commands and dictation (talking mode)
Ultra Wideband (UWB) support
ECG certified (region dependent SW application; HW available on all models)
Connectivity
Bluetooth
5.3, A2DP, LE
5.0, A2DP, LE
Wi-fi
Wi-Fi 802.11 b/g/n
Wi-Fi 802.11 b/g/n, dual-band
Wi-fi Hotspot
Yes
No
USB
No
No
GPS
GPS, GLONASS, GALILEO, QZSS
Yes, with A-GPS, GLONASS, GALILEO, QZSS, BDS
NFC
Yes
Yes
Wireless Charging
Wireless, 80% in 45 min
Yes
Data
GPRS
Yes
Yes
EDGE
Yes
Yes
Speed
HSPA, LTE, 5G
HSPA 42.2/5.76 Mbps, LTE
Battery
Battery Type
Li-Ion (Lithium Ion)
Li-Ion (Lithium Ion)
Capacity
Li-Ion
Up to 18 h (mixed usage)
Placement
Non-removable
Non-removable
Fast Charging
5W
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