Zuoya GMK21 Numpad vs Yunzii YZ21QMK or wireless
Choose the GMK21 for QMK/VIA support and a knob, or the YZ21 for Bluetooth, 2.4 GHz wireless, and a 1500mAh battery.
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Which one should you get?
Get the
Zuoya GMK21 Numpad
Knob
Build quality in the top 10% of Numpad boards under $50.
- QMK and VIA support are explicitly listed.
- The vendor specifies 5-pin hot-swappable sockets.
- A knob is included alongside 20 keys.
Get the
Yunzii YZ21
N-key rollover
Build quality in the bottom 40% of Numpad boards under $50.
- Supports wired, Bluetooth, and 2.4 GHz connections.
- The wireless version has a listed 1500mAh battery.
- Includes PBT keycaps and is listed as pre-built.
- North-facing LEDs. Cherry-profile keycaps can hit the switch housing.
Choose the Zuoya GMK21 if QMK/VIA support, a knob, and a barebones build are central to your setup. Pick the Yunzii YZ21 if you want wireless connectivity, a listed battery, and a pre-built numpad, while keeping its north-facing LED keycap compatibility rule in mind.
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.
Zuoya GMK21 Numpad
Yunzii YZ21
Knob
Yes
No
QMK
Yes
No
The deep option when you want to remap every key
VIA
Yes
No
GUI remapping without compiling firmware
Backlight
RGB
RGB, north-facing
RGB for looks and low light rather than speed
N-key rollover
No
Yes
- Zuoya GMK21 Numpad
- Yunzii YZ21
- Performance
- 6173
- Build quality
- 7953
- Productivity
- 6559
- Customizability
- 9469
- Portability
- 6585
- Layout size: Numpad
- Hot-swappable
What will you mostly use it for?
The YZ21 has the clearer edge for travel and general office use because it supports both wireless and wired connections. Its listed N-Key Rollover also makes it the more feature-backed gaming pick. The GMK21 is the more suitable choice for buyers who want to configure the numpad, build it themselves, or use its knob. For programming and content workflows, that configuration flexibility is more relevant than wireless convenience.
Pick the Yunzii YZ21
- The YZ21 lists N-Key Rollover, while the GMK21 listing does not specify it.
- The YZ21 can connect by wired USB, Bluetooth, or 2.4 GHz wireless.
Zuoya GMK21 Numpad vs Yunzii YZ21 specs
Every tracked spec, side by side. Rows marked with a dot differ between the boards.
7 of 16 specs differ
Zuoya GMK21 Numpad
Yunzii YZ21
Switch options
Hot-swappable
Layout size
Layout standard
Ergonomics
Knob
Display
Connection
Battery
Keycaps
Backlight
QMK
VIA
N-key rollover
Mac & Windows
Released
Compare prices
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Zuoya GMK21 Numpad vs Yunzii YZ21: your questions
The GMK21 is a barebones numpad with QMK/VIA support and a knob. The YZ21 is listed as pre-built and adds Bluetooth, 2.4 GHz wireless, and wired connectivity.
The GMK21 listing does not specify wireless connectivity. The YZ21 explicitly lists Bluetooth and 2.4 GHz wireless alongside wired use.
Yes, Bluetooth is listed as a YZ21 connection option, along with 2.4 GHz wireless and wired connectivity. The GMK21 product listing does not specify Bluetooth.
The Zuoya GMK21 vendor listing explicitly says it is QMK/VIA compatible. The YZ21 product details supplied here do not list QMK or VIA support.
Both are listed as hot-swappable. The GMK21 vendor specifies 5-pin sockets, and the YZ21 vendor says it supports 3-pin or 5-pin hot-swap switches.
The YZ21 is listed with a 1500mAh battery for its wireless version. The GMK21 listing does not specify a battery.
The YZ21 vendor lists Gateron G Pro Red, Blue, Yellow, Brown, and Black switch options. Its hot-swap design is also described as compatible with other 3-pin or 5-pin switches.
Yes, the GMK21 vendor specifies 20 keys with a knob. The YZ21 product details do not list a knob.
The YZ21 has north-facing LEDs, and its compatibility rule warns that Cherry-profile keycaps can hit the switch housing. Consider that clearance issue when selecting replacement keycaps.
The YZ21 is the more travel-oriented option based on its listed Bluetooth and 2.4 GHz wireless modes, plus a 1500mAh battery in the wireless version. The GMK21 listing does not specify wireless connectivity or a battery.
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