Ajazz AK820 Pro vs Keychron K5 ProCompact 75% vs Full-Size Low Profile
Choose the Ajazz AK820 Pro for a compact, feature-rich wireless board, or the Keychron K5 Pro for a full-size layout with extensive programmability.
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4.6 (256)4.6 · 256 reviews
from$55at Epomaker
90-day lowLowest price in 90 days
4.8 (8)4.8 · 8 reviews
from$135at Keychron (DE)
Which one should you get?
Get the
Ajazz AK820 Pro
Compact 75%
Build quality in the top 30% of 75% boards under $100.
- Includes a 0.85-inch TFT screen for displaying system info and customization.
- Uses a gasket mount with a flex-cut PC plate and PCB for a cushioned typing feel.
- Larger 4000mAh battery capacity for extended wireless use.
- South-facing LEDs. Shine-through legends stay dark, and some sculpted keycaps can clip the LED.
- No ISO layout. ISO-DE, UK, and other ISO variants are not offered.
- No numpad.
Get the
Keychron K5 Pro
Full-Size Low Profile
Build quality in the top 15% of 100% boards under $150.
- Supports QMK and VIA firmware for extensive programmability and remapping.
- Available in a wide array of layouts including ANSI, ISO, JIS, and multiple European ISO variants.
- Offers low-profile switches and keycaps for an ultra-slim typing experience.
- Low-profile switches and keycaps only. Standard MX keycaps will not fit.
- North-facing LEDs. Cherry-profile keycaps can hit the switch housing.
Select the Ajazz AK820 Pro if you want a space-saving keyboard with a unique screen, a flexy gasket-mount feel, and longer battery life. Choose the Keychron K5 Pro if you need a full-size layout with a number pad, deep QMK/VIA programmability, low-profile keys, and support for multiple regional layouts. Your primary need for either compactness or a complete key set dictates the best choice.
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.
Ajazz AK820 Pro
Keychron K5 Pro
Layout size
75%
100%
Connection
Bluetooth, 2.4 GHz, Wired
Bluetooth, Wired
Wireless for several devices and wired for lower latency
Battery
4,000 mAh
2,000 mAh
A larger battery means fewer cables during the day
Low profile
No
Yes
Case material
ABS, Aluminum
ABS, Aluminum, Plastic
- Ajazz AK820 Pro
- Keychron K5 Pro
- Performance
- 7779
- Build quality
- 7578
- Productivity
- 8282
- Customizability
- 7289
- Portability
- 7955
- Hot-swappable
What will you mostly use it for?
The Keychron K5 Pro is the stronger choice for traditional office work, programming, and gaming due to its full-size layout and high polling rate. The Ajazz AK820 Pro wins for travel and portability with its compact size and larger battery. For modding, the K5 Pro's QMK/VIA support is a significant advantage, while content creators might value the Ajazz's knob or the Keychron's expansive layout equally.
Pick the Keychron K5 Pro
- The Keychron K5 Pro lists a 1000 Hz polling rate in wired mode for lower latency.
- Its full-size layout includes all number keys and function row without layers.
- The vendor page states its 1000 Hz polling rate is engineered for competitive gaming.
What owners say
Ratings and quotes collected from verified store reviews, including the critical ones.
Ajazz AK820 Pro
256 owner reviews
“It's a nice keyboard, has a nice sound when typing. I like the dedicated volume know and it's easy to load gifs onto the little screen using the ajazz software”
“So recently i started to notice my w key stop completely and have to press again and again for the input, please can you assist me in this matter”
Keychron K5 Pro
8 owner reviews
“I love my new keyboard! It's the typing experience I've been seeking.”
Ajazz AK820 Pro vs Keychron K5 Pro specs
Every tracked spec, side by side. Rows marked with a dot differ between the boards.
18 of 27 specs differ
Ajazz AK820 Pro
Keychron K5 Pro
Switch options
Hot-swappable
Mount style
Low profile
Sound dampening
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
ISO layouts by store
Which stores sell ISO-DE, UK, and the other regional layouts.
Ajazz AK820 Pro
No ISO layout at the stores we track.
Keychron K5 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
In stockDoes not ship to you
Compare prices
Live prices from the stores we track, cheapest in-stock offer first.
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Lowest price across stores, Amazon excluded.
Ajazz AK820 Pro vs Keychron K5 Pro: your questions
The Ajazz AK820 Pro is better for small desks. Its 75% layout measures 327 x 136 mm, which is significantly more compact than the Keychron K5 Pro's full-size 435 x 120 mm footprint, freeing up valuable desk space.
The Keychron K5 Pro offers extensive reprogrammability via QMK and VIA firmware, as stated on its product page. The Ajazz AK820 Pro's vendor description mentions driver software but does not specify the same level of open-source programmability.
The Ajazz AK820 Pro has a larger 4000mAh battery, which should theoretically offer longer wireless usage between charges compared to the Keychron K5 Pro's 2000mAh battery, assuming similar power consumption.
Yes, both keyboards are listed as compatible with Mac and Windows operating systems. The Keychron K5 Pro's description specifically notes it includes keycaps for both systems and allows configuration of different keymaps for each.
The Keychron K5 Pro offers linear, tactile, and clicky switch options, specifically Gateron low-profile mechanical switches. The Ajazz AK820 Pro, based on the provided vendor data, is shown with linear switch options like the Ajazz Gift, Flying Fish, and Dreamy switches.
The Keychron K5 Pro is more customizable for firmware modding due to its QMK and VIA support. For physical mods, both are hot-swappable, but the K5 Pro is limited to Gateron low-profile switches, while the Ajazz accepts standard 3-pin and 5-pin mechanical switches.
Yes, the Ajazz AK820 Pro includes one metal knob, as listed in its technical specifications. The Keychron K5 Pro does not feature a knob.
The Ajazz AK820 Pro uses a gasket-mounted design with a polycarbonate plate and an ABS plastic case with aluminum elements. The Keychron K5 Pro uses a tray mount with an aluminum and plastic frame, and its vendor page highlights redesigned stabilizers for less wobble.
Comfort is subjective. The Ajazz AK820 Pro uses a gasket mount for a softer, more cushioned feel. The Keychron K5 Pro offers a low-profile design and three levels of adjustable typing angle, which its vendor states provides ergonomic wrist support.
Yes, the Keychron K5 Pro explicitly supports ISO, ISO-DE, ISO-Nordic, ISO-UK, ISO-SW, ISO-FR, and ISO-ES layouts in addition to ANSI and JIS. The Ajazz AK820 Pro is listed as ANSI only.
The Keychron K5 Pro's specifications list a 1000 Hz polling rate in wired mode. The Ajazz AK820 Pro's vendor specs state a 1000 Hz polling rate in both wired and 2.4GHz modes, and 125 Hz in Bluetooth mode.
For the Ajazz AK820 Pro, the box includes a keyboard, extra keycaps, a 2-in-1 puller, a USB cable, a 2.4GHz receiver, and a manual. The contents for the Keychron K5 Pro are not detailed in the provided information.
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