Editor’s note: Information from this teardown is supplied courtesy of TechInsights. Click here to request full access. To view a complimentary report of the Deep Dive Teardown of the SK Hynix PE8110 HFS960GEETX070N SSD, click here.
Fitness bands have come a long way since their first iterations that only tracked steps and perhaps heart rate. Now most bands do these two features but also track exercise, analyze sleep patterns, answer phone calls, read and respond to text message and much more.
WHOOP 5.0 is the latest device from the brand that offers all sorts of health sensing capabilities as well with more than two weeks of battery life.
The fitness band includes medical-grade insights like heart screening via ECG capabilities and blood pressure readings daily from the wrist.
The following is a partial deep dive into the fitness band conducted by TechInsights.
Availability: Worldwide
Price: $199
Released: May 2025
Target market: Consumer electronics
The main board found inside the WHOOP 5.0 fitness band. Source: TechInsights
Main board
The main board of the WHOOP 5.0 contains the main memory and processors that are used on the fitness band. Specifically, this includes:
- Ambiq Micro’s ARM 32-bit Cortex-M4 MCU with Bluetooth
- TDK-InvenSense’s six-axis MEMS gyroscope and accelerometer
- Renesas’ programmable mixed signal array
- Winbond’s serial flash memory
- GLF Integrated Power’s load switch
- Onsemi’s battery fuel gauge and 200 mA/1.8 V LDO regulator
- Monolithic Power Systems’ power management IC
- Texas Instruments’ four-channel LED driver and haptic driver
- Micron’s SLC NAND flash memory
(Learn more about flash memory on Globalspec.com)
The PPG/ECG flex board found inside the WHOOP 5.0 fitness band. Source: TechInsights
PPH/ECG flex board
The ECG is the main focus of the WHOOP 5.0 band that analyzes the heart while wearing. The electronic components found on this board include:
- Analog Devices’ 1 amp step-up/step-down converter and optical PPG/ECG analog front-end
- AMS’ temperature sensor
(Learn more about sensors on Globalspec.com)
Some of the components found inside the WHOOP 5.0 fitness band. Source: TechInsights
Major components
- $2.67 — ARM 32-Bit Cortex-M4 MCU w/ Bluetooth 5.0 LE — Ambiq Micro (Qty: 1)
- $2.35 — Battery Subsystem (Qty: 1)
- $1.43 — SLC NAND Flash Memory — 512 MB — Micron (Qty: 1)
- $1.05 — Vibrator: Haptic LRA Z-Axis (Qty: 1)
- $0.96 — Optical PPG/ECG Analog Front-End — Analog Devices (Qty: 1)
- $0.87 — Six Layer Rigid Flex (Qty: 1)
- $0.81 — Buckle (Qty: 1)
- $0.50 — Antenna: Structure — BT (Qty: 1)
- $0.44 — Six-Axis MEMS Gyroscope and Accelerometer — TDK-InvenSense (Qty: 1)
- $0.37 — Eight Layer Buildup FR4/HF (Qty: 1)

