teardown wearable fitness_device_martin_mate
TRANSCRIPT
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Teardown: Wearable Fitness Device
• Wearable Fitness is the largest IoT market.
• OEMs to Kick Starters.
• Ideas, technologies and innovators are all active!
• Many players in the space.
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Why Teardown?
• Know your competitors & their products.
• Learn from competitors (pitfalls & successes).
• Understand supply chain dynamics & design wins.
• Plan both technically and fiscally.
• Because knowledge is power.
• Because it’s just plain interesting.
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What we do at • 15 years total experience; teardown 300+ consumer electronic products
per year, with over 2,000 completed teardowns to date.
• Over 50,000 man-hours each year are focused on hands-on data gathering & documenting.
• This report highlights interesting internal & external design choices.
• Compile data into in-depth reports, including both a Bill of Materials and cost estimates.
• Used by manufacturers & suppliers who want to learn more about their competitors’ products, especially how they’re constructed, the components used, and the estimated cost.
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One of Our First Wearable TeardownsFossil FX-3002
(Dick Tracy Watch)
Circa 2004 and still
available online!
Inductive Charging
Already in Play
*FM Sub-Carrier
Frequency
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Our Wearable Market Coverage
• Fitness Watches/Trackers
• Medical Monitors/Trackers
• Cameras (GoPro)
• Eyewear (Google Glasses)
• Sport Equipment
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0
10
20
30
40
50
60
70
80
90
100
Texas I
nstrum
ents
STMicro
electronics
Ricoh
Maxim
Qualcom
m
Analog Devices
Samsu
ng
Seiko Instr
uments
AMS
Inve
nsense
Top 10 IC Manufacturers by Count2014−Present
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0%
5%
10%
15%
20%
25%
Qualco
mm
Texa
s Inst
rum
ents
Sam
sung
STM
icroel
ectro
nics
Micr
on
Inve
nsense
Max
im
Mura
ta
Himax
SanDisk
Top 10 IC Manufacturers by Percent Cost2014−Present
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Average Cost per Device Function2014−Present
$0.00
$0.50
$1.00
$1.50
$2.00
$2.50
$3.00
$3.50
Applica
tions P
roce
ssors
Connectiv
ity
Senso
rs
Power Mana
gem
ent +
Audio
Mixe
d Sign
al
Non-Volat
ile M
emory
Displa
y/To
uch
Other
Mixe
d Mem
ory
Baseban
d
Volat
ile M
emory RF
Camera
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0
10
20
30
40
50
60
70
80
0 5 10 15 20 25 30
Die Photomask Year
Nu
mb
er
of
ICs
IC Package Age by Die Mark
One part is
26 years old!
111 parts are at
least 10 years old
278 of the parts
are 0-5 years old Sample Size = 551 IC parts
4 parts are at
least 20 years old
20 parts are at
least 15 years old
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Teardown of the Atlas Wristband
What is the Atlas Wristband?• A purpose-build training device• Accurately identifies exercises & counts reps• Calculates total calories burned & evaluates exercise form• Measurement tool tailored to exercises that the user chooses• Software-based system to provide actionable & measurable information to the user
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Why Are We Interested?
• A focused device
• New technology and software integration
• A ground-up project with momentum
• Another component of the wearable ecosystem
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Teardown of the Atlas Wristband Keyed Band with
Magnetic Attachment
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Teardown of the Atlas Wristband
Power/Mode Button
Rubber Wristbandwith Metal Buckle
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Teardown of the Atlas Wristband Heart Rate MonitorThere are two green LEDs and one amber
LED. The amber LED is included tostrengthen the detectable signal withvarious skin tones.
Micro USB
USB Connector
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Vibrator
Battery
Main Board
USB ConnectorPower / Mode
Switch
Sensor Board
Top X-Ray
Bluetooth Antenna
Teardown of the Atlas Wristband
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Faceplate / Top Enclosure
Teardown of the Atlas Wristband
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Battery
Main Board
Teardown of the Atlas Wristband
OLED Display &Touchscreen
OLED Display &Touchscreen
OLED Display &Touchscreen
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*The battery and vibrator were bothsoldered directly to the main board.
Teardown of the Atlas Wristband
Battery
Vibrator
Sensor Board & Flex
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Sensor Board
Back Enclosure
Teardown of the Atlas Wristband
SensorBoard
The Sensor Board was heat-staked to the back enclosure.
Back Enclosure
Waterproof RubberPower / Mode Button
Flex Cable Routedto Main Board
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Main Board Side 1
Bluetooth Antenna with
Bluetooth Module
removed
Nordic Semiconductor#NRF51822Bluetooth Low Energy Transceiver & 2.4 GHz SoC
Teardown of the Atlas Wristband
BluetoothBoard
AntennaBoard
Bluetooth Module
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Main Board (Side 1)42.9 mm
25.9
mm
Touchscreen
Battery
VibratorPower On/Off
microUSB
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Main Board Side 1 (IC Identification)
1 - STMicroelectronics#STM32F401CCU6ARM Cortex-M4 32-Bit Microcontroller
2 - STMicroelectronics#STNS01Battery Charger w/ LDO
3 - Texas Instruments#TPS61041 ?DC/DC Boost Converter
5 - STMicroelectronics#STM6522 ?Smart Reset Dual Push-Button
11 - Fairchild Semiconductor#FPF1204Slew-Rate-Controlled Load Switch
Component Function:
Power Management / Audio
Other
Mixed Signal
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Main Board Side 242.9 mm
25.9
mm
Sensor Board Display
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Main Board Side 2 (IC Identification)
6 - Macronix#MX25L25635FSerial Flash Memory - 32 MB
7 - Azoteq#IQS213A3-Channel Capacitive Touch/Swipe Function Controller
10 - Analog Devices#ADP162ACBZ-2.8-R7150 mA / 2.8 V LDO Regulator
Component Function:
Other
Memory: Non-Volatile
Display / Touchscreen
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Main Board Side 2 (IC Identification - Sensors)
9 - STMicroelectronics#LSM6DS06-Axis MEMS Accelerometer & Gyroscope (2-Die Pkg.)
Component Function:
Sensor
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Sensor Board Side 1
20.0 mm10.2
mm
ZIF Connector toMain Board
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Sensor Board Side 1 (IC Identification)14 - STMicroelectronics#STM32F401CCY6ARM Cortex-M4 32-Bit Microcontroller
Component Function:Mixed Signal
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Sensor Board Side 1 (IC Identification - Sensors)13 - Freescale#MMA8452Q3-Axis Digital MEMS Accelerometer
Component Function:Sensor
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Silicon Labs#Si 1143-A11-GMRAmbient Light/Proximity Sensor
Sensor Board Side 2 (IC Identification)
Component Function:Sensor
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Key Observations• Device included 2 ARM microcontrollers, with each tied to an
accelerometer: a 6-axis and a 3-axis.
• Using many off-the-shelf (older but proven) electronic components.
• Bluetooth in module form seated on top of another board, which contains the board-integrated antenna.
• More cabling with wires and flex alleviates design restraints.
• Ambient light sensor versus photo diode for bio sensor.
• Seeing different variations for providing water resistance (for example, over-molding, grease, and gaskets).
• More fitness trackers being released with displays, in line with trends.