Huawei Ideos S7

The Huawei Ideos S7 is a commercially available tablet in the USA. Note that the S7 Slim is a different design.

Overview

The Huawei Ideos S7 provides 256MB of memory and 8GB of eMMC storage

Display

The display size is 7" diagonal w. 16:9 aspect ratio. The resolution is 800 x 480. A single point resistive touchscreen is integrated.

There are two internal speakers, independently wired, and an internal mono microphone.

Connectivity

The Ideos S7 has 3G, 802.11b/g WiFi and Bluetooth, using three individual antennas.

Location/Movement

The Ideos S7 has an accelerometer.

Ports

• One USB OTG (power output only)
• One multipin connector, use undefined (docking ?)
• One microSD card, externally accessible
• One DC input port

Power

The Ideos S7 has a 8.2Wh Li-Ion polymer battery.

Breakdown

The tablet has a back cover which removes to allow access to the motherboard. Removing the back cover requires removal of six T-6 screws on the back (hidden under plugs) and four T-6 screws in the front (hidden behind the flexible black plastic glued to each side of the display).

Electrically, the tablet consists of a main PCB, two auxiliary flexible PCBs (front facing camera, light sensor, and input buttons), and the display sandwich.

Height

The tablet thickness is roughly 15.8mm in the middle. The height stackup is:

Height Stackup

Touchscreen: 0.5mm
Cover Glass: 1.1mm
Air Gap: 1.7mm
Display: 5.9mm
Steel frame: 0.8mm	Battery: 5.9mm
Motherboard: 4.5mm
Back plastic: 1mm
Back cover: 0.8mm

Weight

The tablet weight is roughly 510 grams. This breaks down as:

Weight

Cover Glass/Touchscreen/Bezel:	130g
Display:	152g
Motherboard:	64g
Battery:	52g
Back cover:	106g
Total:	504g

BOM

• Main motherboard breakdown