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