MMD KM21 Ultra vs Varmilo Sword V2 16 Numpad
Choose the MMD KM21 Ultra for hot-swap switches, QMK/VIA customization, four clickable knobs, and wireless connectivity; choose the Varmilo for its PBT keycaps and detachable magnetic top case.
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Which one should you get?
Get the
MMD KM21 Ultra
Hot-swappable
Build quality in the top 15% of Numpad boards under $100.
- Four clickable knobs alongside 17 keys, with knobs assignable through VIA.
- Hot-swap sockets allow switches to be replaced without soldering.
- QMK and VIA support for configurable keys and knobs.
Get the
Varmilo Sword V2 16 Numpad
Build quality in the bottom 35% of Numpad boards under $100.
- CNC aluminum case with a detachable magnetic top case.
- PBT keycaps with dye-sublimated legends, according to the vendor listing.
- White LED backlighting.
- Switches are soldered. Swapping them means soldering.
Choose the MMD KM21 Ultra if you want a configurable macropad with four clickable knobs, hot-swap switches, and wired or wireless connections. Pick the Varmilo Sword V2 16 Numpad if its PBT keycaps and detachable magnetic top case matter more than switch-swapping flexibility. Check current availability before buying, since the listings show different stock status.
The differences that matter
Skip the 40-row spec sheet. These are the specs that change how each board feels, sounds, and fits your desk.
MMD KM21 Ultra
Varmilo Sword V2 16 Numpad
Hot-swappable
Yes
No
Switch changes without soldering
Mount style
Top Mount
Plate Mount
Knob
Yes
No
QMK
Yes
No
The deep option when you want to remap every key
VIA
Yes
No
GUI remapping without compiling firmware
- MMD KM21 Ultra
- Varmilo Sword V2 16 Numpad
- Performance
- 6652
- Build quality
- 8156
- Productivity
- 8944
- Customizability
- 8951
- Portability
- 8666
- Layout size: Numpad
- Case material: Aluminum
What will you mostly use it for?
The KM21 Ultra takes the more flexible role across office, programming, travel, and content-creation setups, mainly because it combines configurable controls with wireless options. Its hot-swap sockets also make it the more adaptable choice for gaming and switch changes. The Varmilo's strongest distinction is its detachable magnetic top case, while its N-key rollover and multimedia keys may appeal to buyers who want those specific features. Both are compact numpads, but their approaches to customization differ substantially.
Pick the MMD KM21 Ultra
- The KM21 Ultra supports wired USB-C and 2.4 GHz connections as well as Bluetooth.
- Its hot-swap sockets and QMK/VIA support allow changes to switches and key assignments.
- The Varmilo has N-key rollover, but its switches are soldered.
MMD KM21 Ultra vs Varmilo Sword V2 16 Numpad specs
Every tracked spec, side by side. Rows marked with a dot differ between the boards.
12 of 22 specs differ
MMD KM21 Ultra
Varmilo Sword V2 16 Numpad
Switch options
Hot-swappable
Mount style
Sound dampening
Layout size
Layout standard
Ergonomics
Knob
Display
Media keys
Connection
Battery
USB-C
Case material
Plate material
Keycaps
Backlight
QMK
VIA
N-key rollover
Mac & Windows
Released
Compare prices
Live prices from the stores we track, cheapest in-stock offer first.
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MMD KM21 Ultra vs Varmilo Sword V2 16 Numpad: your questions
The MMD KM21 Ultra has hot-swap sockets, so switches can be changed without soldering. The Varmilo Sword V2 16 Numpad has soldered switches, and changing them requires soldering.
Yes. The KM21 Ultra supports Bluetooth and 2.4 GHz wireless, as well as wired USB-C, and it has a 980 mAh battery.
The KM21 Ultra has four clickable rotary knobs in addition to its keys. Its vendor description says the knobs can be assigned through VIA.
The Varmilo listing identifies the product's USB key rollover and other features but does not list wireless connectivity. The KM21 Ultra explicitly supports Bluetooth, 2.4 GHz wireless, and USB-C.
The MMD KM21 Ultra lists both QMK support and VIA support. The Varmilo Sword V2 listing does not identify QMK or VIA support.
The Varmilo listing specifies PBT keycaps and dye-sublimated printing. It does not describe the KM21 Ultra's keycap material.
The vendor describes the Varmilo Sword V2 as having a detachable magnetic top case. This is a case feature, separate from the soldered switches.
The Varmilo Sword V2 listing specifies full USB key rollover, and its product metadata lists N-key rollover. The KM21 Ultra's listed features do not specify key rollover.
Yes, both product listings specify aluminum cases. The KM21 Ultra is described as CNC-machined aluminum, and the Varmilo vendor describes its case as CNC all-aluminum.
The KM21 Ultra has four clickable knobs that its vendor says can be assigned to controls such as volume, zoom, or timeline scrubbing. The Varmilo listing specifies multimedia keys but does not describe rotary knobs.
Not sold on either?
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