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Harmony 2 technical specifications

Updated 28 Sep 2026
Short answerHarmony 2 has a 2.84" E Ink display with a 2700 K front light, a 2600 mAh battery and a 3.5 W speaker. It has no Bluetooth or Wi-Fi.

Harmony 2 has a 2.84" E Ink display with a warm 2700 K front light, a 2600 mAh battery and a 3.5 W speaker. It has no Bluetooth or Wi-Fi: everything goes through the USB-C cable.

Specifications

ItemHarmony 2
Display2.84" E Ink, 600 x 480 px, 270 DPI, 16 levels of gray
Active display area56.4 x 45.12 mm
Front light2700 K, off by default
ProcessorArm Cortex-M7, 600 MHz
Memory4 GB
SpeakerMax 3.5 W TDA speaker
Alarm sounds17 built in, and you can add your own with Mudita Center
Battery2600 mAh lithium-ion, charging takes 3 to 5 hours
Battery lifeSeveral weeks of moderate use on the latest software
PortUSB-C, for charging, updates and file transfer
WirelessNone: no Bluetooth, no Wi-Fi
Weight230 g (plus or minus 5%)
Dimensions
MaterialABS
ColoursPebble Gray, Charcoal Black
LanguagesEnglish, Spanish, French, German, Polish

In the box and charging

Charge with a USB-C cable and a wall adapter. The adapter is not included. Charge for at least 3 hours before first use.

Harmony and Harmony 2

Both run the same system and get the same updates, so they have the same features. Harmony 2 has small hardware changes for stability. The battery capacity is the same.

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