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Watch Edition 42mm A1554

Watch Edition 42mm A1554

from Apple
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Overview & Features

Brand
Apple
Brief
Sapphire crystal, Retina display, ceramic back, 18-Karat yellow gold or 18-Karat rose gold 42 mm case
Model
Watch Edition 42mm A1554
OEM ID
n28aap
Codename
Apple Watch 1,2
Released
2015 Apr 24
Manufacturer
Quanta Computer
General Extras
Haptic touch feedback
Tactile touch feedback
Hardware Designer
Apple
List of Additional Features
changeable straps, iOS 8.2 support

Technical Specifications

Display

Pixel Size
0.07965 mm/pixel
Resolution
312x390
121680 pixels
Display Area
771.9 square millimeter
Display Type
Color AM-OLED
display
Display Width
24.85 mm
Pixel Density
319 PPI
Display Height
31.06 mm
Display Diagonal
39.78 mm
Display Color Depth
24 bit/pixel
Display Illumination
Self-illuminating
Display Subpixel Scheme
Yes
Display Area Utilization
51.2%
Number of Display Scales
16.8M
Scratch Resistant Screen
Sapphire Glass
Display Dynamic Range Depth
8 bit/pixel
Horizontal Full Bezel Width
17.15 mm
Display Light Reflection Mode
Yes

Power Supply

Battery
Lithium-ion polymer (LiPo)
built-in
1-cell
Wireless Charging
Yes
Nominal Battery Energy
0.95 Wh
Nominal Battery Voltage
3.78 Volts
Nominal Battery Capacity
250 mAh battery
Nominal Cell Voltage (1st cell)
3.78 Volts
Nominal Cell Capacity (1st cell)
250 mAh cell

Sound Playing

Audio Output
No
Loudspeaker(s)
mono

Cellular Phone

Supported Cellular Bands
No
Complementary Phone Services
Vibrating Alert

Audio Subsystem

Audio Channel(s)
stereo

Sound Recording

Microphone(s)
mono

Auxiliary Camera

Aux. Camera Image Sensor
No

Built-in Sensors

Additional sensors
Barometer
Heart rate sensor
Light intensity sensor
Built-in gyroscope
Yes
Built-in accelerometer
Yes

Operative Memory

RAM Type
Yes
RAM Capacity
512 MiB RAM

Ingress Protection

Protection from liquids
7 Protected against the effect of immersion up to 1m of depth
Protection from solid materials
Yes

Control Peripherals

Scroll Wheel
Pressable rotary scroll wheel
Touchscreen Type
Capacitive multi-touch sensing
screen
Touchscreen Simultaneous Touch Points
Yes

Graphical Subsystem

Graphical Controller
PowerVR SGX543

Non-volatile Memory

Non-volatile Memory Type
Flash EEPROM
Non-volatile Memory Capacity
7629 MiB
Non-volatile Memory Interface
Yes

Physical Attributes

Mass
67 g
Depth
10.5 mm
Width
42 mm
Height
35.9 mm
Bounding Volume
15.8 ccm

Multimedia Broadcast

FM Radio Receiver
No

Satellite Navigation

Supported GPS protocol(s)
No

Software Environment

Platform
Apple iOS / iPadOS
Operating System
Apple Watch OS 1.0

Audio/Video Interfaces

A/V Out
No

Auxiliary Camera No. 2

Aux. 2 Camera Image Sensor
No

Auxiliary Camera No. 3

Aux. 3 Camera Image Sensor
No

Auxiliary Camera No. 4

Aux. 4 Camera Focus
No
Aux. 4 Camera Image Sensor
No

Primary Camera System

Flash
No
Focus
No
Camera Image Sensor
No

Secondary Camera System

Secondary Camera Sensor
No

Communication Interfaces

NFC
Yes
USB
No
No
Bluetooth
Bluetooth 4.0
Internal antenna
Wireless LAN
IEEE 802.11b
IEEE 802.11g
IEEE 802.11n
Internal antenna
USB Connector
No
Expansion Interfaces
No

Secondary Cellular Phone

Sec. Supported Cellular Networks
No

Secondary Auxiliary Camera

Sec. Aux. Cam. Image Sensor
No

Application processor, Chipset

CPU
Apple S1 (S7002), 2015, 32 bit, single-core, IMG PowerVR SGX543 GPU
CPU Clock
520 MHz

Secondary Auxiliary Camera No. 2

Sec. Aux. 2 Cam. Image Sensor
No

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