![]() Instead, the Apollo4 Blue has embedded MRAM, or eMRAM and is our first such IC to add to our library. However, this new Ambiq Apollo4 Blue is not just another ARM Cortex-M4 SoC. Ambiq Apollo4 Blue eMRAM provides a very large, efficient, non-volatile memory Fitbit had used Infineon (Cypress Semiconductor) PSOC controllers in many of their past fitness bands, but here in the Fitbit Luxe, we found Infineon replaced by the latest Ambiq ARM Cortex-M4. A single MCU controls most, if not all, of these sensors. Wearables, especially fitness trackers such as the Luxe and the Fitbit Inspire 2, can have many helpful health features such as heart rate monitoring, skin temperature sensors, and SpO2 sensors. ![]() The specifications on the Luxe state it has a few sensors more than the Inspire 2. It is unnecessary to do a teardown on a Luxe to see its rear sensors are different from that of the Fitbit Inspire 2, but we did. What the Fitbit Luxe looks like from a teardown point of view The Luxe has other changes from the Inspire 2, including the AMOLED display, and a haptic assembly more similar to the Taptic Engines found in the Apple Watch and Apple iPhones.įig. And while we wait for our pre-order of our Fitbit Charge 5 to arrive, we will take a look at what Fitbit Luxe has inside of it. What we do is look at and compare generations of devices. We don’t know, and we do not comment on whether one device is better than its previous generation.
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