Compare Apple – Watch 42mm A1554 vs Apple – Watch SE 2 40mm 2022 2nd gen TD-LTE NA A2726 Specifications

Watch 42mm A1554 Watch SE 2 40mm 2022 2nd gen TD-LTE NA A2726
Brand
Apple Apple
Model
Watch 42mm A1554 Watch SE 2 40mm 2022 2nd gen TD-LTE NA A2726
Brief
Space black stainless steel, or stainless steel 42 mm case, Sapphire crystal, Retina display, and ceramic back When a severe car crash is detected, the emergency services call interface will appear on Apple Watch, as it is most likely to be in closer proximity to the user, while the call is placed through iPhone if it is in range for the best possible connection
Released
2015 Apr 24 2022 Sep 16
Hardware Designer
Apple Apple
Manufacturer
Quanta Computer N/A
Codename
Apple Watch 1
2 		Apple Watch 6
12
OEM ID
n28aap N149sAP
General Extras
Haptic touch feedback
Tactile touch feedback 		Haptic touch feedback
Tactile touch feedback
Device Category
Smartwatch Smartwatch
List of Additional Features
changeable straps
iOS 8.2 support 		Ion-X Sapphire glass screen
changeable straps
iOS 16 support
2nd gen optical heart-rate sensor
LTPO OLED Retina Display
Fall Detection
Crash Detection
Watch 42mm A1554 Watch SE 2 40mm 2022 2nd gen TD-LTE NA A2726
Width
42 mm
1.65 inch 		34 mm
1.34 inch
Height
35.9 mm
1.41 inch 		40 mm
1.57 inch
Depth
10.5 mm
0.41 inches 		10.7 mm
0.42 inches
Bounding Volume
15.8 ccm 14.6 ccm
Mass
50 g
1.76 ounces 		27.8 g
0.98 ounces
Watch 42mm A1554 Watch SE 2 40mm 2022 2nd gen TD-LTE NA A2726
Platform
Apple iOS / iPadOS Apple iOS / iPadOS
Operating System
Apple Watch OS 1.0 Apple watchOS 9
Watch 42mm A1554 Watch SE 2 40mm 2022 2nd gen TD-LTE NA A2726
CPU Clock
520 MHz 1800 MHz
CPU
Apple S1 APL0778 (S7002)
2,015
32 bit
single-core
32 Kbyte D-Cache
256 Kbyte L2
28 nm
IMG PowerVR SGX543 GPU 		Apple S8 (T8301)
2,022
64 bit
dual-core
7 nm
RAM Type
Yes LPDDR4x SDRAM
RAM Capacity
512 MiB RAM 1024 MiB RAM
Non-volatile Memory Type
Flash EEPROM Flash EEPROM
Non-volatile Memory Interface
Yes Yes
Non-volatile Memory Capacity
7629 MiB non-volatile 30518 MiB non-volatile
Watch 42mm A1554 Watch SE 2 40mm 2022 2nd gen TD-LTE NA A2726
Display Diagonal
39.78 mm
1.6 inch 		39.9 mm
1.6 inch
Resolution
312x390
121680 pixels 		324x394
127656 pixels
Display Width
24.85 mm
0.98 inch 		25.34 mm
1 inch
Display Height
31.06 mm
1.22 inch 		30.82 mm
1.21 inch
Horizontal Full Bezel Width
17.15 mm 8.66 mm
Display Area
771.9 square millimeter 781 square millimeter
Display Area Utilization
51.2% 57.4%
Pixel Size
0.07965 mm/pixel 0.07822 mm/pixel
Pixel Density
319 PPI 325 PPI
Display Type
Color AM-OLED display Color AM-OLED display
Display Subtype
Retina Display N/A
Display Color Depth
24 bit/pixel 24 bit/pixel
Number of Display Scales
16.8M 16.8M
Display Dynamic Range Depth
8 bit/pixel 8 bit/pixel
Display Illumination
Self-illuminating Self-illuminating
Display Light Reflection Mode
Yes Yes
Display Subpixel Scheme
Yes Yes
Scratch Resistant Screen
Sapphire Glass Yes
Graphical Controller
PowerVR SGX543 Apple S8
A/V Out
No No
Watch 42mm A1554 Watch SE 2 40mm 2022 2nd gen TD-LTE NA A2726
Audio Channel(s)
stereo stereo
Microphone(s)
mono mono
Loudspeaker(s):
mono mono
Audio Output:
No No
Watch 42mm A1554 Watch SE 2 40mm 2022 2nd gen TD-LTE NA A2726
Supported Cellular Bands
No UMTS 2100MHz (Band I, IMT), UMTS 1900MHz (Band II, PCS), UMTS 1700/2100MHz (Band IV, AWS), UMTS 850MHz (Band V, CLR), UMTS 900MHz (Band VIII), LTE 2100 MHz (Band 1), LTE 1900 MHz (Band 2, PCS), LTE 1800 MHz (Band 3), LTE 1700/2100 MHz (Band 4, AWS), LTE 850 MHz (Band 5), LTE 2600 MHz (Band 7), LTE 700 MHz (Band 12), LTE 700 MHz (Band 13), LTE 700 MHz (Band XIV), LTE 700 MHz (Band 17), LTE 800 MHz (Band 18), LTE 800 MHz (Band 19), LTE 800 MHz (Band 20), LTE 1900 MHz (Band 25), LTE 850 MHz (Band 26), TD-LTE 1900 MHz (Band 39), TD-LTE 2300 MHz (Band XL), TD-LTE 2500 MHz (Band XLI), LTE 1700/2100 MHz (Band 66) bands
Complementary Phone Services
Vibrating Alert Voice transmission, Voice speaker, Vibrating Alert
Sec. Supported Cellular Networks:
No No
Watch 42mm A1554 Watch SE 2 40mm 2022 2nd gen TD-LTE NA A2726
Touchscreen Type
Capacitive multi-touch sensing screen Capacitive multi-touch sensing screen
Touchscreen Simultaneous Touch Points
Yes Yes
Scroll Wheel
Pressable rotary scroll wheel Pressable rotary scroll wheel
Watch 42mm A1554 Watch SE 2 40mm 2022 2nd gen TD-LTE NA A2726
Expansion Interfaces
No No
USB
No
No 		No
No
USB Connector
No No
Bluetooth
Bluetooth 4.0
Internal antenna 		Bluetooth 5.3
Internal antenna
Wireless LAN
IEEE 802.11b
IEEE 802.11g
IEEE 802.11n
Internal antenna 		IEEE 802.11b
IEEE 802.11g
IEEE 802.11n
Internal antenna
NFC
Yes Yes
Watch 42mm A1554 Watch SE 2 40mm 2022 2nd gen TD-LTE NA A2726
FM Radio Receiver
No No
Watch 42mm A1554 Watch SE 2 40mm 2022 2nd gen TD-LTE NA A2726
Supported GPS protocol(s)
No GPS (NMEA 0183)
Watch 42mm A1554 Watch SE 2 40mm 2022 2nd gen TD-LTE NA A2726
Camera Image Sensor
No No
Focus
No No
Flash
No No
Aux. Camera Image Sensor
No No
Aux. 2 Camera Image Sensor
No No
Aux. 3 Camera Image Sensor
No No
Aux. 4 Camera Image Sensor
No No
Aux. 4 Camera Focus
No No
Watch 42mm A1554 Watch SE 2 40mm 2022 2nd gen TD-LTE NA A2726
Secondary Camera Sensor
No No
Sec. Aux. Cam. Image Sensor
No No
Sec. Aux. 2 Cam. Image Sensor
No No
Watch 42mm A1554 Watch SE 2 40mm 2022 2nd gen TD-LTE NA A2726
Built-in accelerometer
Yes Yes
Built-in gyroscope
Yes Yes
Additional sensors
Barometer
Heart rate sensor
Light intensity sensor 		Altimeter
Barometer
Heart rate sensor
Light intensity sensor
Step counter
Watch 42mm A1554 Watch SE 2 40mm 2022 2nd gen TD-LTE NA A2726
Protection from solid materials
Yes Yes
Protection from liquids
7 Protected against the effect of immersion up to 1m of depth 7 Protected against the effect of immersion up to 1m of depth
Immersion into liquids (depth limit)
100 cm 5000 cm
Watch 42mm A1554 Watch SE 2 40mm 2022 2nd gen TD-LTE NA A2726
Battery
Lithium-ion polymer (LiPo)
built-in
1-cell 		Lithium-ion
built-in
1-cell
Nominal Cell Voltage (1st cell)
3.78 Volts 3.85 Volts
Nominal Cell Capacity (1st cell)
250 mAh cell 266 mAh cell
Nominal Battery Voltage
3.78 Volts 3.85 Volts
Nominal Battery Capacity
250 mAh battery 266 mAh battery
Nominal Battery Energy
0.95 Wh 1.02 Wh
Wireless Charging
Yes Yes
Watch 42mm A1554 Watch SE 2 40mm 2022 2nd gen TD-LTE NA A2726

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