Keychron K15 Pro vs K3 ProAlice Layout or Compact
Choose the K15 Pro for its Alice layout, rotary knob, and larger battery, or the K3 Pro for its lighter, smaller body and support for ISO and JIS layout variants.
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4.8 (12)4.8 · 12 reviews
from$74at Keychron
4.8 (52)4.8 · 52 reviews
from$67at Keychron
Which one should you get?
Get the
Keychron K15 Pro
Battery
Build quality in the top 15% of 75% boards under $100.
- Alice layout with an ergonomic split shape.
- Rotary encoder knob that can be customized with keys and macros.
- 2000mAh battery.
- Low-profile switches and keycaps only. Standard MX keycaps will not fit.
- North-facing LEDs. Cherry-profile keycaps can hit the switch housing.
- No ISO layout. ISO-DE, UK, and other ISO variants are not offered.
Get the
Keychron K3 Pro
Build quality in the top 15% of 75% boards under $100.
- Available in ISO and JIS layouts, including ISO-DE, ISO-UK, and ISO-Nordic.
- Lighter 525g weight and smaller listed dimensions of 306 x 116 mm.
- Offers both tray mount and plate mount.
- 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.
Get the K15 Pro for its Alice layout, rotary knob, and 2000mAh battery, features the K3 Pro does not list. Choose the K3 Pro for its lighter, smaller case, ISO and JIS layout options, and plate-mount option, which the K15 Pro does not list.
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 K15 Pro
Keychron K3 Pro
Battery
2,000 mAh
1,550 mAh
A larger battery means fewer cables during the day
Ergonomics
Alice
Standard
Mount style
Tray Mount
Plate Mount, Tray Mount
Knob
Yes
No
Weight
696 g
525 g
Heavier boards stay planted and lighter ones travel
- Keychron K15 Pro
- Keychron K3 Pro
- Performance
- 8382
- Build quality
- 8181
- Productivity
- 9280
- Customizability
- 9289
- Portability
- 8177
- Layout size: 75%
- Connection: Bluetooth, Wired
- Hot-swappable
- Low profile
- Max polling rate: 1,000 Hz
- Case material: ABS, Aluminum, Plastic
What will you mostly use it for?
The K15 Pro has the edge for ergonomic typing and workflows that can make use of a dedicated knob, while the K3 Pro is the more compact option to carry. Programming and modding are close because both offer QMK, VIA, and hot-swap versions, but the K15 Pro’s knob and the K3 Pro’s mount choices make their customization options different. For gaming, both share a 1000 Hz wired polling rate and N-Key Rollover, so neither has a clear listed advantage. The K3 Pro also stands out for buyers who need an ISO or JIS layout.
It's a tie
- Both list a 1000 Hz wired polling rate and N-Key Rollover.
- Both offer linear, tactile, and clicky switch types.
- The K15 Pro adds a rotary knob, while the K3 Pro is lighter at 525g.
What owners say
Ratings and quotes collected from verified store reviews, including the critical ones.
Keychron K15 Pro
12 owner reviews
“Bought it, even if not available in german QWERTZ Layout. But because of reprogrammabillity, that does not matter that much. The clickiness of the brown switches is on point. Big fan. I would really like to have not ansi style buyable Low Profile Double Shot…”
Keychron K3 Pro
52 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”
Keychron K15 Pro vs K3 Pro specs
Every tracked spec, side by side. Rows marked with a dot differ between the boards.
10 of 26 specs differ
Keychron K15 Pro
Keychron K3 Pro
Switch options
Hot-swappable
Mount style
Low profile
Layout size
Layout standard
Ergonomics
Knob
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
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 K15 Pro
No ISO layout at the stores we track.
Keychron K3 Pro
- Go to Keychron
Keychron
ISO-DE, ISO-UK, ISO-Nordic, ISO-FR, ISO-ES, ISO-SW
Out of stockShips to you
- Go to Keychron (DE)
Keychron (DE)
ISO-DE, ISO-UK, ISO-Nordic, ISO-FR, ISO-ES, ISO-SW
Out of stockDoes not ship to you
Keychron K15 Pro vs K3 Pro: your questions
The K15 Pro uses a 75% Alice layout and includes a rotary encoder knob. The K3 Pro has a normal 75% layout, weighs less, and is offered in ISO and JIS variants.
The K15 Pro has an Alice layout, which gives it a different shape from the K3 Pro’s normal layout. Keychron also describes the K15 Pro as having an ergonomic typing experience.
The K3 Pro weighs 525g, while the K15 Pro weighs 696g. The K3 Pro is also listed as shorter and narrower.
No, both models require low-profile switches and keycaps, and standard MX keycaps will not fit. Check keycap profile compatibility before buying replacement sets.
Both models have hot-swappable versions. Keychron says the hot-swap versions accept compatible low-profile Gateron mechanical switches.
The K15 Pro has an aluminum rotary encoder knob that Keychron says can be customized with keys and macros. A rotary knob is not listed for the K3 Pro.
Both product listings include QMK and VIA support. Keychron also describes using its Launcher web app to customize keys and macros.
The K3 Pro is offered in several ISO layouts, including ISO-DE, ISO-UK, ISO-FR, and ISO-Nordic, as well as JIS. The K15 Pro is listed in ANSI only.
The K15 Pro has a listed 2000mAh battery, while the K3 Pro has a 1550mAh battery. Battery capacity alone does not establish how long either keyboard will run between charges.
Both list a 1000 Hz polling rate and N-Key Rollover. The K15 Pro vendor description specifies that its 1000 Hz polling rate applies in wired mode.
Both product compatibility notes warn that Cherry-profile keycaps can hit the switch housing with north-facing LEDs. The K3 Pro also has a note for south-facing LED versions, where shine-through legends stay dark and some sculpted keycaps can clip the LED.
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