Keychron K3 Ultra vs K3 V2
Choose the K3 Ultra for 8K polling, 2.4 GHz and QMK/VIA, or the K3 V2 for regional layouts such as ISO-DE, ISO-UK and ISO-Nordic.
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4.3 (9)4.3 · 9 reviews
from$109at MK
4.8 (2,258)4.8 · 2,258 reviews
from$105at Keychron (DE)
Which one should you get?
Get the
Keychron K3 Ultra
Battery
Build quality in the top 30% of 75% boards under $150.
- 8000 Hz polling rate and 2.4 GHz wireless connectivity.
- QMK and VIA support.
- PBT keycaps and an aluminum plate.
- 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-DE, ISO-UK, ISO-Nordic. The other board is sold in those layouts.
Get the
Keychron K3 V2
Build quality in the bottom 50% of 75% boards under $150.
- Available in additional layouts including JIS, ISO-Nordic, ISO-UK and ISO-DE.
- Two-level adjustable rubber feet and a reinforced body structure, as described by Keychron.
- The vendor listing includes five extra keycaps.
- Low-profile switches and keycaps only. Standard MX keycaps will not fit.
- North-facing LEDs. Cherry-profile keycaps can hit the switch housing.
Get the K3 Ultra for its 8K polling, 2.4 GHz connection, QMK/VIA support and PBT keycaps. Choose the K3 V2 when you need a regional layout such as ISO-DE, ISO-UK or ISO-Nordic, or specifically want its adjustable rubber feet and included extra keycaps.
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 Ultra
Keychron K3 V2
Connection
Bluetooth, 2.4 GHz, Wired
Bluetooth, Wired
Wireless for several devices and wired for lower latency
Battery
2,600 mAh
1,550 mAh
A larger battery means fewer cables during the day
Case material
ABS, Wood
Aluminum, Plastic
Mount style
Plate Mount
Tray Mount
QMK
Yes
No
The deep option when you want to remap every key
- Keychron K3 Ultra
- Keychron K3 V2
- Performance
- 8663
- Build quality
- 7565
- Productivity
- 8965
- Customizability
- 8668
- Portability
- 8280
- Layout size: 75%
- Hot-swappable
- Low profile
- Switch options: Clicky, Linear, Tactile
What will you mostly use it for?
The K3 Ultra leads for gaming, programming, travel and modding based on its 8K polling, 2.4 GHz connection, larger listed battery and QMK/VIA support. Office use is a closer call: the Ultra has sound dampening, while the V2 offers multimedia keys and adjustable feet. For content creation, the Ultra’s firmware support and connection choices give it the edge. The K3 V2 remains the more suitable pick when a specific regional layout is essential.
Pick the Keychron K3 Ultra
- The K3 Ultra lists an 8000 Hz polling rate.
- It supports 2.4 GHz wireless as well as Bluetooth and wired connections.
What owners say
Ratings and quotes collected from verified store reviews, including the critical ones.
Keychron K3 Ultra
9 owner reviews
“Portable, match my minimalist setup, great feeling, high quality, durable”
“Meh. I dont like the wood grain and they make it difficult to return or exchange”
Keychron K3 V2
2,258 owner reviews
“I had a full-size mechanical keyboard before that was tking too much of deskspace. This keyboard with it's 65% size is amazing and saves quite some desk space.”
Keychron K3 Ultra vs K3 V2 specs
Every tracked spec, side by side. Rows marked with a dot differ between the boards.
11 of 22 specs differ
Keychron K3 Ultra
Keychron K3 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
Backlight
QMK
VIA
Mac & Windows
Released
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.
ISO layouts by store
Which stores sell ISO-DE, UK, and the other regional layouts.
Keychron K3 Ultra
- Go to Keychron
Keychron
ISO
Out of stockShips to you
- Go to Keychron (DE)
Keychron (DE)
ISO
In stockDoes not ship to you
Keychron K3 V2
- Go to Keychron
Keychron
ISO-DE, ISO-UK, ISO-Nordic, ISO-ES
Out of stockShips to you
- Go to Keychron (DE)
Keychron (DE)
ISO-DE, ISO-UK, ISO-ES
In stockDoes not ship to you
Keychron K3 Ultra vs K3 V2: your questions
The K3 Ultra adds 2.4 GHz connectivity, an 8000 Hz polling rate and QMK/VIA support. The K3 V2 offers more listed regional layouts, including JIS, ISO-DE, ISO-UK and ISO-Nordic.
Yes, the K3 Ultra lists 2.4 GHz, Bluetooth and wired connectivity. The K3 V2 lists Bluetooth and wired connectivity.
The K3 Ultra lists an 8000 Hz polling rate. No polling-rate figure is listed for the K3 V2.
Yes, QMK and VIA support are listed for the K3 Ultra. They are not listed among the K3 V2’s features here.
The K3 V2 lists JIS, ISO-Nordic, ISO-UK, ISO-DE and ISO-ES layouts in addition to ANSI and ISO. The K3 Ultra lists ANSI and ISO, so it does not cover the specific regional layouts noted for the V2.
Neither board is suitable for standard MX keycaps according to its compatibility details, both require low-profile keycaps. The K3 Ultra’s north-facing LEDs can also cause Cherry-profile keycaps to hit the switch housing.
The K3 V2 has north-facing LEDs, and its compatibility details warn that Cherry-profile keycaps can hit the switch housing. It also requires low-profile keycaps rather than standard MX keycaps.
The K3 Ultra lists a 2600mAh battery, while the K3 V2 lists a 1550mAh battery. Those capacities are the listed figures, not a guarantee of runtime in a particular setup.
Keychron’s K3 V2 product description says it comes with five extra keycaps. The listing also describes keycaps for both Windows and Mac.
Hot-swappable is listed as a feature for both keyboards. The K3 V2 vendor description specifies that hot-swapping applies to its low-profile Keychron Optical switch version.
Keychron describes the K3 V2 as having two-level adjustable rubber feet. Adjustable feet are not listed for the K3 Ultra.
The K3 Ultra is the more feature-specific gaming choice because it lists an 8000 Hz polling rate and 2.4 GHz connectivity. The K3 V2’s listed connections are Bluetooth and wired.
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