Deep Dive Report
LG G Watch W100
Bluetooth 4.0
Report #17000-140821-ASd
Product Description
The LG G Watch W100 is a IP67-certified smartwatch
and activity tracking device worn like a regular
wristwatch. All notifications, time, and activity
information are displayed on a 1.65-in. IPS TFT-LCD
display with 280 x 280 resolution, 16M colors, and a
Corning Gorilla Glass 3 overlay for extra durability.
Navigating to various screens is made possible using
the multitouch capacitive touchscreen.
The G W100 runs the Android Wear operating system
on a 1.2 GHz quad-core Qualcomm Snapdragon 400
(APQ8026) processor with 512 MB RAM. The
smartwatch has 4 GB of internal memory and a builtin microphone for voice activation. Connectivity is
provided by Bluetooth 4.0 while a microUSB is located
on the included charging cradle. Sensors include a 6axis MEMS gyroscope & accelerometer, 3-axis MEMS
accelerometer, and 3-axis electronic compass. The LG
G Watch LG-W100 is powered by 3.8 V, 400 mAh LiPolymer battery. Battery life is unknown.
DISCLAIMER: All company names, product names, and service names mentioned are used for identification purposes only and may be registered trademarks, trademarks, or service marks of their respective owners. All
analyses are done without participation, authorization, or endorsement of the manufacturer. Any cost analyses presented in this material are estimates prepared by TechInsights from generally available data. While
TechInsights believes that these estimates reflect the probable costs, the actual producer did not supply the data, and therefore the actual costs may be different from these estimates. Furthermore, TechInsights extends
no warranties with respect to any information in this document, and shall bear no liability whatsoever for the use of the information.
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Block Diagram
11 - AKM Semiconductor
#AK8963C
3-Axis Electronic Compass
5 - STMicroelectronics
#LIS3DSH
3-Axis MEMS Accelerometer
Bluetooth Antenna
4 - Invensense
#MPU-6515
6-Axis MEMS Gyroscope & Accelerometer
9 - Synaptics
#S3402B
Capacitive Touchscreen Controller
10 - Broadcom
#BCM20715
Single-Chip Bluetooth 4.0 Controller
15 - Novatek
#NA01398
TFT-LCD Display Driver
6 - Texas Instruments
#LM3530
Ambient Light-Sensing White LED Driver
1 - Qualcomm
#APQ8026
Snapdragon 400 Applications Processor
14 - IMAGIS
#ISA1000
Haptic Driver
Vibrator
Microphone
Charging Terminals
3 - Qualcomm
#PM8226
Power Management
16 - Seiko Instruments
#S-8200A ?
Battery Protection
8 - Maxim
#MAX17050
Fuel Gauge
2 - SK Hynix
#H9TU32A4GDMCLR-KGM
Multichip Memory - 512 MB Mobile DDR2-S4 SDRAM,
4 GB MLC NAND Flash, Memory Controller
Estimated block diagram based on observation of this specific product implementation, manufacturer’s
data sheets where available, and best engineering judgment. Certain details of the interface circuitry
are not reflected in this block diagram. Partitioning and connectivity are speculative.
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? = Unconfirmed
LG G Watch W100 #17000-140821-ASd - Page 2
Component Arrangement
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LG G Watch W100 #17000-140821-ASd - Page 3
Main Board (Side 1)
Bluetooth Antenna
Battery
Display
Microphone
Touchscreen
Backup Battery
Charging Terminals
Vibrator
Reset Button
Grid = 1 cm
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LG G Watch W100 #17000-140821-ASd - Page 4
Main Board (Side 1 IC Identification)
4 - Invensense
#MPU-6515
6-Axis MEMS Gyroscope & Accelerometer
7 - Fairchild Semiconductor
#FTL11639
Configurable Load Switch w/ Reset Timer
5 - STMicroelectronics
#LIS3DSH
3-Axis MEMS Accelerometer (2-Die Pkg.)
6 - Texas Instruments
#LM3530
Ambient Light-Sensing White LED Driver
8 - Maxim
#MAX17050
Fuel Gauge
3 - Qualcomm
#PM8226
Power Management
Package on Package
1 - Qualcomm
#APQ8026
Snapdragon 400 Applications Processor
Grid = 1 cm
Copyright © 2014, TechInsights
2 - SK Hynix
#H9TU32A4GDMCLR-KGM
Multichip Memory - 512 MB Mobile DDR2-S4 SDRAM,
4 GB MLC NAND Flash, Memory Controller (3-Die Pkg.)
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LG G Watch W100 #17000-140821-ASd - Page 5
Main Board (Side 2 IC Identification)
14 - IMAGIS
#ISA1000
Haptic Driver
13 - ON Semiconductor
#NLAS7222C
USB 2.0 DPDT Switch
12 - Unknown
#Unknown
EEPROM Memory - 8 KB ?
9 - Synaptics
#S3402B
Capacitive Touchscreen Controller
10 - Broadcom
#BCM20715
Single-Chip Bluetooth 4.0 Controller
11 - AKM Semiconductor
#AK8963C
3-Axis Electronic Compass
Grid = 1 cm
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LG G Watch W100 #17000-140821-ASd - Page 6