Ajazz AK820 Max Plus vs Redragon UCAL K673 Pro
Choose the Ajazz for its TFT screen and larger battery, or the Redragon for RGB lighting and gasket construction.
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4.0 · 5 reviews
from$57at WhatGeek
No reviews
from$64at Redragon
Which one should you get?
Get the
Ajazz AK820 Max Plus
Battery
Build quality in the bottom 35% of 75% boards under $100.
- TFT color screen can display time, connection options, battery level, and custom GIF animations.
- 8000mAh battery, compared with the Redragon's 4000mAh.
- Listed weight is 850g, lighter than the Redragon's 1200g.
Get the
Redragon UCAL K673 Pro
Build quality in the bottom 45% of 75% boards under $100.
- RGB lighting, which the Ajazz specification does not list.
- Gasket mount with a silicone gasket and five named dampening materials: PO foam, IXPE switch foam, PET sound pad, bottom socket foam, and silicone bottom pad.
- Vendor says its hot-swap socket accommodates nearly all 3- and 5-pin switches.
Pick the Ajazz AK820 Max Plus if you want a TFT display, longer listed battery capacity, or a lighter keyboard. Choose the Redragon UCAL K673 Pro if RGB, gasket construction, and its specified five-layer dampening setup matter more. Both offer a 75% layout, a knob, hot-swap support, and three connection modes.
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 Max Plus
Redragon UCAL K673 Pro
Battery
8,000 mAh
4,000 mAh
A larger battery means fewer cables during the day
Case material
ABS
Plastic
Display
TFT
None
A case display rather than a typing feature
Weight
850 g
1,200 g
Heavier boards stay planted and lighter ones travel
Backlight
None
RGB
RGB for looks and low light rather than speed
- Ajazz AK820 Max Plus
- Redragon UCAL K673 Pro
- Performance
- 5266
- Build quality
- 5862
- Productivity
- 8469
- Customizability
- 6158
- Portability
- 9275
- Layout size: 75%
- Connection: Bluetooth, 2.4 GHz, Wired
- Hot-swappable
- Switch options: Linear
- Knob
- Sound dampening
What will you mostly use it for?
The Ajazz edges ahead for office work, programming, travel, and content creation, mainly through its screen and larger battery, with a lighter listed weight also helping on the move. The Redragon is the gaming-leaning pick here because it adds RGB and is explicitly positioned for gaming. Modding is a close call: both are hot-swappable, with vendor descriptions detailing support for multiple switch pin types. Their shared 75% layout and wireless modes keep the overall choice focused on those differences.
Pick the Redragon UCAL K673 Pro
- The Redragon has RGB lighting, while the Ajazz is listed without RGB.
- Both have linear switches and support wired and 2.4 GHz connections.
- Redragon describes its K673 Pro as a mechanical gaming keyboard.
Ajazz AK820 Max Plus vs Redragon UCAL K673 Pro specs
Every tracked spec, side by side. Rows marked with a dot differ between the boards.
8 of 20 specs differ
Ajazz AK820 Max Plus
Redragon UCAL K673 Pro
Switch options
Hot-swappable
Mount style
Sound dampening
Layout size
Layout standard
Ergonomics
Knob
Display
Connection
Battery
USB-C
Case material
Plate material
Keycaps
Weight
Dimensions
Backlight
Mac & Windows
Released
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Ajazz AK820 Max Plus vs Redragon UCAL K673 Pro: your questions
The Ajazz has a TFT screen and an 8000mAh battery, while the Redragon has RGB lighting and a gasket mount. Both are 75% keyboards with linear switches, a knob, and wired, Bluetooth, and 2.4 GHz connections.
Yes. Its TFT color screen can show the time, connection options, and battery level, and the Ajazz vendor description also mentions personalized GIF animations.
Yes, the Redragon UCAL K673 Pro is listed with RGB lighting. The Ajazz AK820 Max Plus is listed without RGB.
The Ajazz AK820 Max Plus has an 8000mAh battery, while the Redragon UCAL K673 Pro has a 4000mAh battery. Capacity alone does not establish how long either keyboard will run between charges.
Both support Bluetooth and 2.4 GHz wireless, as well as wired USB-C connections. The Ajazz vendor description also specifies Bluetooth 5.1, while Redragon lists BT 3.0/5.0.
Yes, both are listed as hot-swappable. Ajazz describes support for all keys, and Redragon says its socket accommodates nearly all 3- and 5-pin switches.
The Ajazz AK820 Max Plus is listed at 850g, while the Redragon UCAL K673 Pro is listed at 1200g. Both have Bluetooth and 2.4 GHz wireless connectivity.
Yes, both include a knob. Redragon says its knob controls backlight brightness and media functions, while Ajazz lists knob support.
The Redragon UCAL K673 Pro has a gasket mount, with the vendor describing a silicone gasket and a structure designed to add flexibility. The Ajazz AK820 Max Plus is listed with an FR4 plate, but no mount style is specified.
Ajazz describes silicone at the bottom, two cotton layers, and an IXPE switch pad. Redragon names PO foam, IXPE switch foam, a PET sound pad, bottom socket foam, and a silicone bottom pad, alongside its silicone gasket.
Ajazz lists Mac and Windows support for the AK820 Max Plus. The Redragon vendor description does not identify specific operating-system compatibility.
The Redragon package list includes spare switches and a combined keycap and switch puller. Ajazz lists separate keycap and switch pullers, but its package list does not mention spare switches.
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