✓ VERIFIED

Microsoft Band 2

2015–2016 · wearable

Specifications

Cpu: STMicroelectronics low-power microcontroller (undisclosed model)
Ram: max: unknown, not publicly documented · base: unknown, not publicly documented
Battery: Lithium-polymer, rated up to 48 hours mixed use, repositioned into the wrist clasp; under 90 minutes to full charge
Display: Curved AMOLED touchscreen, 320x128, protected by Corning Gorilla Glass 3
Storage: base: 64 MB flash for firmware and cached data · options:
Case Sizes: Small · Medium · Large
Os Support: latest: Microsoft Health app; Microsoft discontinued the Health/Band services in 2019, bricking cloud-dependent features · shipped: Microsoft Health companion app on Windows Phone, iOS, and Android
Release Price: $249.99

Variants

Sizes

SmallBand strap size

MediumBand strap size

LargeBand strap size

Colors

BlackOnly color, 2015 launch

Upgrade paths

battery

Sealed cell, no official replacement · iFixit teardowns found the curved AMOLED-era band glued shut around the battery and sensor stack, considered non-repairable without destroying the flexible circuitry.

LOCKED

other

Third-party watch faces and reverse-engineered sync clients after Microsoft shut down Microsoft Health servers · When Microsoft killed the Health cloud backend in 2019, community projects emerged to keep basic sensor logging alive without the original app.

HARD