Keychron K3 Pro vs K5 V2Compact or Full-Size?
Choose the K3 Pro for a more compact, lighter board, or the K5 V2 if you need a numpad and full-size layout.
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4.7 (54)4.7 · 54 reviews
from$67at Keychron
4.5 (8)4.5 · 8 reviews
from$89at MK
Which one should you get?
Get the
Keychron K3 Pro
Build quality in the top 15% of 75% boards under $100.
- Compact 75% layout with dimensions of 15 x 306 x 116 mm.
- Weighs 525 g, lighter than the K5 V2.
- Supports QMK and VIA, and the vendor describes key remapping and macros through Keychron Launcher.
- Low-profile switches and keycaps only. Standard MX keycaps will not fit.
- North-facing LEDs. Cherry-profile keycaps can hit the switch housing.
- South-facing LEDs. Shine-through legends stay dark, and some sculpted keycaps can clip the LED.
- No numpad.
Get the
Keychron K5 V2
Battery
Build quality in the top 15% of 100% boards under $100.
- Full-size 100% layout with a numpad.
- 2000 mAh battery, larger than the K3 Pro's listed 1550 mAh battery.
- Vendor lists shine-through ABS keycaps and RGB or white backlight versions.
- Low-profile switches and keycaps only. Standard MX keycaps will not fit.
- North-facing LEDs. Cherry-profile keycaps can hit the switch housing.
- Missing ISO-FR, ISO-ES. The other board is sold in those layouts.
Pick the K3 Pro if you want a lighter, smaller keyboard and can work without a numpad. Choose the K5 V2 if the full-size layout, shine-through ABS keycaps, and larger battery better suit your desk setup. Both offer QMK, VIA, hot-swap options, and a 1000 Hz wired polling rate, so layout is the clearest deciding factor.
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.
Keychron K3 Pro
Keychron K5 V2
Layout size
75%
100%
Battery
1,550 mAh
2,000 mAh
A larger battery means fewer cables during the day
Case material
ABS, Aluminum, Plastic
ABS, Aluminum
Mount style
Plate Mount, Tray Mount
PCB Mount
Weight
525 g
732 g
Heavier boards stay planted and lighter ones travel
- Keychron K3 Pro
- Keychron K5 V2
- Performance
- 8182
- Build quality
- 8180
- Productivity
- 8089
- Customizability
- 8888
- Portability
- 7754
- Connection: Bluetooth, Wired
- Hot-swappable
- Low profile
- Max polling rate: 1,000 Hz
- Switch options: Clicky, Linear, Tactile
- QMK
What will you mostly use it for?
The K3 Pro is the more travel-oriented option thanks to its smaller dimensions and lower weight. The K5 V2 is a stronger fit for desk-based work that benefits from a numpad, including office tasks and numeric content workflows. Gaming is a close match on the listed wired polling rate and rollover support. For programming and modding, the choice depends more on preferred layout and specific low-profile switch options than on a clear feature advantage.
It's a tie
- Both list a 1000 Hz polling rate and N-key rollover.
- Both support wired and wireless connectivity and offer hot-swappable versions.
- The K3 Pro is smaller at 75%, while the K5 V2 has a full-size layout.
What owners say
Ratings and quotes collected from verified store reviews, including the critical ones.
Keychron K3 Pro
54 owner reviews
“For anyone buying this, remember to toggle the switch to the correct operating system. Other than that, the feel is good and it comes with a good feature set for a low price”
“I was happy at the beginning but after few months of use I'm getting more and more frustrated. Keyboard just hangs sometimes and I'm not able to connect with BT. I use it to operate two laptops and using Fn+1 anf Fn+2 combination is great... when it works…”
Keychron K5 V2
8 owner reviews
“Genuinely happy with the keyboard. Had a low-profile one from another brand that has been used for 12+ years, and it degraded over time. This K5 feels very good. Still have to get used to the distance between the "primary," arrows, and numpad blocks, but…”
“Got this keyboard so I could keep my K5 Pro at work and this one at home. Both are the RGB version with brown switches, the K5v2 is quieter than the Pro and just as good to use. It also reports battery state over Bluetooth, which is a nice QoL improvement…”
Keychron K3 Pro vs K5 V2 specs
Every tracked spec, side by side. Rows marked with a dot differ between the boards.
11 of 26 specs differ
Keychron K3 Pro
Keychron K5 V2
Switch options
Hot-swappable
Mount style
Low profile
Sound dampening
Layout size
Layout standard
Ergonomics
Display
Media keys
Connection
Max polling rate
Battery
USB-C
Case material
Plate material
Keycaps
Weight
Dimensions
Typing angle
Backlight
QMK
VIA
N-key rollover
Mac & Windows
Released
ISO layouts by store
Which stores sell ISO-DE, UK, and the other regional layouts.
Keychron K3 Pro
Keychron
ISO-DE, ISO-UK, ISO-Nordic, ISO-FR, ISO-ES, ISO-SW
Out of stockShips to you
Keychron (DE)
ISO-DE, ISO-UK, ISO-Nordic, ISO-FR, ISO-ES, ISO-SW
Out of stockDoes not ship to you
Keychron K5 V2
Keychron
ISO-DE, ISO-UK, ISO-Nordic, ISO-SW
In stockShips to you
Keychron (DE)
ISO-DE, ISO-UK, ISO-SW
In stockDoes not ship to you
MonacoKeys
ISO-DE
In stockDoes not ship to you
Compare prices
Live prices from the stores we track, cheapest in-stock offer first.
Prices in USD are converted to your currency and can change at any time. KeebFinder may earn a commission when you buy through these links, at no extra cost to you.
Lowest price across stores, Amazon excluded.
Keychron K3 Pro vs K5 V2: your questions
The K3 Pro uses a compact 75% layout, while the K5 V2 is a full-size 100% keyboard with a numpad. The K3 Pro is also lighter and smaller.
The K5 V2 has a full-size layout that includes a numpad. The K3 Pro's 75% layout does not include one.
The Keychron K3 Pro weighs 525 g, while the K5 V2 weighs 732 g. The K3 Pro is the lighter choice for moving between workspaces.
Both keyboards support Bluetooth and wired connectivity. The K3 Pro vendor description says it can connect wirelessly to up to three devices, and the K5 V2 vendor description also lists support for up to three devices.
Both list QMK and VIA support. Their vendor descriptions also describe using Keychron Launcher for key remapping and macros.
Both list hot-swappable versions, but the available hot-swap options depend on the selected version. The K3 Pro vendor specifies Gateron low-profile mechanical switches, while the K5 V2 vendor names Keychron Milk POM and low-profile mechanical switches.
No, both compatibility rules specify low-profile switches and keycaps, and say standard MX keycaps will not fit. Check keycap profile and low-profile compatibility before buying replacement sets.
The K5 V2 lists a 2000 mAh battery, compared with 1550 mAh for the K3 Pro. The K5 vendor description also claims up to 160 hours of use.
Both list a 1000 Hz polling rate. The vendor descriptions specify that rate for wired mode.
The K3 Pro is the more compact choice, measuring 15 x 306 x 116 mm and weighing 525 g. The K5 V2 measures 25 x 424 x 119 mm and weighs 732 g.
The K3 Pro lists ISO-FR and ISO-ES among its layout options. The K5 V2 compatibility rules indicate those layouts are missing.
Both list RGB lighting, and their vendor descriptions mention RGB and white-backlight versions. The K5 V2 uses shine-through ABS keycaps, while the K3 Pro vendor description lists low-profile double-shot PBT keycaps.
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