HHKB - Happy Hacking Keyboard Professional Hybrid Type-S (Wireless, Bluetooth, Wired, USB, Silent, Charcoal, Printed) with 2 Year Advance Exchange Warranty vs NRF52840-DK EVAL Board for NRF52840 nRF52840 - Transceiver; 802.15.4 (Thread, Zigbee®), ANT, Bluetooth® 5.x (BLE) 2.4GHz Evaluation Board
Side-by-side comparison based on Reddit community data

#7 in Mechanical Keyboards
HHKB
HHKB - Happy Hacking Keyboard Professional Hybrid Type-S (Wireless, Bluetooth, Wired, USB, Silent, Charcoal, Printed) with 2 Year Advance Exchange Warranty
$230.87
100/100Excellent
100% positive0% neutral0% negative
Pros
- +Feel great to type on
- +Uses topre switches
- +Solid build
- +Ages well
- +Classic
“it really is a solid keyboard, and if I were to actually just choose one, it'd be the HHKB. Topre just ages really well, and is a classic!”

#9 in Mechanical Keyboards
Nordic Semiconductor
NRF52840-DK EVAL Board for NRF52840 nRF52840 - Transceiver; 802.15.4 (Thread, Zigbee®), ANT, Bluetooth® 5.x (BLE) 2.4GHz Evaluation Board
$97.60
100/100Excellent
100% positive0% neutral0% negative
“use an NRF52840 Bluetooth with ZMK as the MCU.”