Disassembly report: HUAWEI X GENTLE MONSTER Eyewear II smart glasses

HUAWEI SMART EYEWEAR

HUAWEI X GENTLE MONSTER Eyewear II is a new generation of Huawei’s smart audio glasses released in 2020. Based on the previous HUAWEI X GENTLE MONSTER Eyewear, the problem of sound leakage has been improved, and the charging, battery life, intelligent interaction and other aspects have been upgraded. . This series of glasses adheres to the design principles of simplicity, fashion, and smart core, focusing on product fashion and ease of wearing.

Smart audio glasses combine smart audio with the form of glasses, and configure an independent operating system for them, so that they have both functions, which not only enhance the portability of the product, but also have fashionable decoration functions, and are regarded as Another market hotspot after TWS earphones.

Huawei Eyewear II is also richer in appearance design, providing 4 sunglasses and 9 optical glasses with a total of 13 front frames to meet the needs of different people in different scenarios. The charging box has also changed from a bag shape to a box shape, and adopts NFC wireless fast charging technology. Due to the size problem, the built-in battery of the charging box was cancelled. Correspondingly, the battery life of the glasses has been greatly improved, from 2.5 hours in the previous generation to 5 hours.

The 128mm² custom-made diaphragm is used in the configuration, and a new inverse sound field acoustic system is added, which effectively reduces the sound leakage of the previous generation products, and can offset the sound leakage of the previous generation. The latest Bluetooth 5.2 protocol further improves the connection stability; the interactive experience passes Built-in vibration sensor, press sensor and sliding sensor three sensors, realize the control of various functions. This time we are disassembling the Huawei Eyewear II smart glasses SMART LUTTO-01, let us take a look at this product and its internal configuration in detail.

1. Unpacking Huawei Eyewear II Smart Glasses

Huawei Eyewear II box

The packaging box has a black background and the co-branded information “GENTLE MONSTER-HUAWEI” on the front.

The back of the Huawei Eyewear II box

The back of the box has the introduction of Huawei Terminal Co., Ltd. and Jingtemeng Trading (Shanghai) Co., Ltd., and the information on the label includes the product name: HUAWEI X GENTLE MONSTER Eyewear II, model, CMIIT ID, frame size and other product specifications. Pasted with anti-counterfeiting identification and product bar code information.

Huawei Eyewear II accessory box

The items in the packaging box are divided into a glasses box and an accessory box, and the glasses are placed in the glasses box.

The items in the accessory box include TypeC charging cable, manual, safety information, warranty card, and glasses cleaning cloth.

HUAWEI Eyewear II glasses case cover

There is a joint information of “GENTLE MONSTER—HUAWEI” on the top of the glasses case; the cover of the glasses case is connected by a zipper. If I don’t say you shouldn’t see that this is a glasses case, right? The outer layer of the box is all wrapped in black leather, and then it is opened and closed with a zipper. There is also the letter G on the zipper, which highlights a touch of Gentle Monster.

Huawei Eyewear II Spectacle Case

The Type-C charging interface is located on the back of the glasses case, with a charging indicator and multi-function buttons next to it.

Huawei Eyewear II glasses case back

The label information on the bottom of the glasses case has the product name: HUAWEI X GENTLE MONSTER Eyewear II, model: FIJ-CG020, CMIIT ID: 2020DP5624, Huawei Terminal Co., Ltd., 5V-2A, made in China, etc.

Inside of the Huawei Eyewear II glasses case

Open the glasses case, Eyewear II smart glasses are located in the charging card slot, and there is a charging guide label on the cover of the glasses case.

A close-up of the mirror leg slot in the glasses case, which is also the charging sensing area.

The cover of the glasses case is relatively thick to protect the lenses from falling damage.

Huawei Eyewear II overall weight

We measured the overall weight of the HUAWEI Eyewear II smart glasses to be 254.5g.

Huawei Eyewear II glasses weight

The weight of the glasses is 41.1g.

Huawei Eyewear II wired charging test

We use the ChargerLAB POWER-Z KM001C portable power tester to perform wired charging test on HUAWEI Eyewear II smart glasses, and the charging power is about 1.329W.

2. Disassembly of Huawei Eyewear II Smart Glasses Charging Case

Coming to the disassembly part, first remove the charging frame structure fixed with double-sided tape in the glasses case. The glasses charging frame is composed of upper and lower two layers and has a certain curvature. Remove all screws to open the cavity. There is a charging indicator light guide structure on the side. There is a piece of graphite copper foil inside the shell for heat dissipation.

Huawei Eyewear II cavity internal components

A list of the internal components of the cavity. The left and right sides are the charging coils, and the middle is the control circuit part.

The charging port inside the charging frame, the charging indicator light guide, and the multi-function buttons. Take out the main board unit, the back of the main board, the coils on both sides have used a larger area of heat dissipation film. Connect the wireless charging board to the left and right on the front of the motherboard.

Huawei Eyewear II wireless charging coil

A close-up of the wireless charging coil. The coil is covered with tape for insulation and has a larger area to increase the wireless charging range.

Huawei Eyewear II motherboard and wireless charging pad

The Type-C charging interface female seat passes through the opening of the motherboard. The flat cable is connected to the motherboard through the BTB connector.
The main board and the wireless charging board are connected by wire welding.

Huawei Eyewear II Type-C charging interface cable

The Type-C charging port is fixed on the frame by screws.
A close-up of the information on the Type-C charging interface cable.

Huawei Eyewear II nRF52832 Bluetooth BLE SOC

The wireless charging board is connected to the main board with two coil poles on both sides, and the black in the middle is the grounding shielding layer.
Pry open the rectangular shielding cover on the back of the motherboard. nRF52832 Bluetooth BLE SOC, low power consumption, supports larger storage space, supports more protocols.

3. Disassembly of Huawei Eyewear II smart glasses

Huawei Eyewear II Smart Glasses

A look at the folded state of Huawei Eyewear II smart glasses.

Huawei Eyewear II speaker pressure relief hole

The speaker pressure relief hole on the temple.

Huawei Eyewear II microphone

The speaker sound hole and microphone opening on the temple.

Huawei Eyewear II Smart Glasses Nose Pads

The nose pads of Huawei Eyewear II smart glasses are made of transparent materials to reduce wear and tear.

HUAWEI Eyewear II Smart Glasses Hinge

A close-up of the connecting structure between the frame and the temples.

Right temple of Huawei Eyewear II smart glasses

The GENTLE MONSTER brand name is printed on the inside of the right temple.

Huawei Eyewear II smart glasses left temple

The HUAWEI brand name is printed on the inside of the left temple.

Huawei Eyewear II smart glasses temples

Open the glasses temple cavity.

Battery in the temples of Huawei Eyewear II smart glasses

The wireless charging position is covered by a graphite heat dissipation film.
A close-up of the battery unit in the temple.

Huawei Eyewear II smart glasses inner main board

The battery is connected to the motherboard through a cable.

Huawei Eyewear II Smart Glasses Battery unit

A list of main board unit components in the cavity, covered by a shielding cover.
The speaker cable and the battery unit are connected on the same cable.
The left and right temples are arranged in a similar mirror image, and the battery units on both sides are compared.

Disassembly of the right temple of Huawei Eyewear II smart glasses

Disassemble the right temple.

Huawei Eyewear II Smart Glasses Battery

Lithium-ion polymer battery model: HB410935ECW, 85mAh/0.32Wh/3.82V, charging limit voltage: 4.4V, executive standard: GB31241-2014, made in China.
Internal battery silkscreen information, model: 390831, capacity: 0.336Wh, voltage: 3.82V, the battery comes from ATL New Energy Technology Co., Ltd.

Huawei Eyewear II smart glasses flash memory chip

Two WINBOND Q64FWY low-voltage flash memory chips are used to store brand information, etc.

ET9562 Single lithium battery linear charging chip with power path management. The charger uses constant current/constant voltage mode to charge the lithium battery. The maximum withstand voltage of the input terminal can reach 24V, and when the input voltage is greater than 6V, the circuit will enter the over-voltage protection state and stop charging. In the charging mode, the charger has functions such as trickle charging, constant current charging, constant voltage charging, charging cut-off and charging status display.

Huawei Eyewear II smart glasses chip

Everest Shunxin ES7243 high-performance stereo audio analog-to-digital converter, with 102 dB signal-to-noise ratio, -85 dB THD+N, 24-bit, 8 to 200 kHz sampling frequency, I2S/PCM master or slave serial data port; support TDM , 256/384Fs, USB 12/24 MHz and other non-standard audio system clocks, low-power standby mode, etc.

Everest-ES7243

Everest Shunxin ES7243 detailed data map.

G312's MEMS silicon microphone

Laser carving G312’s MEMS silicon microphone.

HiSilicon Hi1132 main control chip

HiSilicon Hi1132 main control chip, used for Bluetooth connection, supports Bluetooth V5.2.

HUAWEI X GENTLE MONSTER Eyewear II

Disassemble the Huawei HUAWEI X GENTLE MONSTER Eyewear II smart glasses.

Conclusion:

Compared with the previous generation products, the appearance design of Huawei HUAWEI X GENTLE MONSTER Eyewear II smart glasses has not changed much. The main change is that the glasses case is changed from a bag shape to a box shape, and the built-in battery of the charging case is eliminated. Corresponding measures adopt NFC wireless fast charging technology to reduce charging time and improve the ability to quickly replenish power in a short period of time. The battery life of the glasses has also been greatly improved, the overall battery life has been doubled, and it can support 5 hours of battery life.

Other major changes are in the main control chip and speaker unit. The HUAWEI Eyewear II smart glasses are replaced by the previous generation BES Hengxuan 2300 Bluetooth audio SoC with Huawei’s self-developed HiSilicon Hi1132 main control chip. The Bluetooth version has also been upgraded to 5.2; the speaker The 128mm² customized diaphragm and the inverse sound field acoustic system are used to effectively reduce the sound leakage of Eyewear II and improve the wearing experience.

In terms of internal configuration, the motherboard of the glasses case uses NXP NXP wireless charging IC with built-in drive tube; Aiwei AW9106B light control IC for RGB LED control; and nRF52832 Bluetooth BLE SOC. On the glasses, the internal structure of the left and right temples is mirrored, and the microphones are all located on the right leg; the lithium-ion battery has a capacity of 85mAh, from ATL New Energy Technology; the main control chip on the motherboard is Huawei’s self-developed HiSilicon Hi1132, which supports Bluetooth V5.2; and ET9562 single lithium battery linear charging chip, Shunxin ES7243 high-performance stereo audio analog-to-digital converter, Winbond Electronics Q64FWY low-voltage flash memory chip, etc.

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