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Garmin Forerunner 735XT Teardown

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Garmin Forerunner 735XT Teardown, Closeup: crwdns2935265:00crwdnd2935265:01crwdnd2935265:03crwdne2935265:0 Garmin Forerunner 735XT Teardown, Closeup: crwdns2935265:00crwdnd2935265:02crwdnd2935265:03crwdne2935265:0 Garmin Forerunner 735XT Teardown, Closeup: crwdns2935265:00crwdnd2935265:03crwdnd2935265:03crwdne2935265:0
Closeup

  • GNSS receiver looks like MediaTek MT3333 with external amplifier+filter+chip antenna. And ARM7 CPU.

  • The watch has at least 3 Cortex-M4 microcontrollers, not counting Ant+ or GNSS chips! Microchip ATSAMG51, ATSAMG53 and MAX32360

  • nRF51422 contains ANT+ and Bluetooth LE functionality. And Cortex-M0 CPU to run these.

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