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Compare Ajazz AK820 Pro vs Firstblood B81 Differences Side by Side

This comparison is for buyers deciding between two feature-rich 75% wireless keyboards at very different price points. The Ajazz AK820 Pro offers a high-value package with a unique TFT screen, while the Firstblood B81 focuses on a luxurious crystal-clear aesthetic. The decision is difficult because both share core specs like gasket mount, tri-mode connectivity, and hot-swappable sockets, but diverge dramatically in materials, design philosophy, and cost.

76
Ajazz AK820 Pro
73
WhatGeek x FirstBlood B81 Crystal Transparent Wireless Mechanical Keyboard

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4.6 (739)
0.0 (0)
  • Includes a Yes, TFT display
  • Features N-key rollover
  • Equipped with a 4000 mAh battery
  • Weighs about 810 g
  • Sized at 40 x 327 x 136 mm
  • Made with a ABS, Aluminum case
  • Features PBT keycaps
  • Offers Yes, Rgb, South-face, Rgb South-face RGB lighting
  • Includes a No display
  • Provides dedicated media keys
  • Includes screw-in stabilizers
  • Equipped with a 3750 mAh battery
  • Weighs about 1500 g
  • Sized at 100 x 480 x 220 mm
  • Made with a Acrylic case
  • Features PC, PBT, ABS keycaps
  • Offers Yes, North-face, Rgb RGB lighting
Scores
  • Performance: 60.9
  • Build Quality: 66.6
  • Productivity: 82.4
  • Customizability: 72.7
  • Portability: 79.1
Scores
  • Performance: 51.3
  • Build Quality: 61.1
  • Productivity: 90.5
  • Customizability: 78.6
  • Portability: 81.5
Name
Ajazz AK820 Pro
Name
Firstblood B81
Release year
2023
Release year
2023
Switch Options
Linear
Switch Options
Linear
Profile
Normal Profile
Profile
Normal Profile
Hot Swappable
 
Hot Swappable
 
Layout Size
75%
Layout Size
75%
Layout Standard
ANSI
Layout Standard
ANSI
Layout Ergonomics
Normal
Layout Ergonomics
Normal
Knob Support
 
Knob Support
 
Display Support
 
TFT
Display Support
 
Mac/Win Support
 
Mac/Win Support
 
Multi-Media Keys
 
Multi-Media Keys
 
USB-C
 
USB-C
 
USB passthrough
 
USB passthrough
 
Connection
Bluetooth, 2.4 GHz, Wired, Wireless
Connection
Bluetooth, 2.4 GHz, Wired, Wireless
Polling Rate
-
Polling Rate
-
Battery capacity
4000 mAh
Battery capacity
3750 mAh
Hall Effect Support
 
Hall Effect Support
 
QMK Support
 
QMK Support
 
VIA Support
 
VIA Support
 
VIAL Support
 
VIAL Support
 
N-Key Rollover
 
N-Key Rollover
 
Rapid Trigger
 
Rapid Trigger
 
Mount Style
Gasket Mount
Mount Style
Gasket Mount
Screw in Stabilizers
 
Screw in Stabilizers
 
Sound Dampening
 
Sound Dampening
 
Backlight
 
Rgb, South-face
Backlight
 
North-face, Rgb
Case Colors
Case Colors
Case Material
ABS, Aluminum
Case Material
Acrylic
Keycaps Material
PBT
Keycaps Material
PC, PBT, ABS
Dimensions
40 x 327 x 136 mm
Dimensions
100 x 480 x 220 mm
Weight
810g
Weight
1500g
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Pros and Trade-offs

Your budget and priority for flashy aesthetics versus practical features decide this match. The Ajazz AK820 Pro delivers exceptional value, packing a TFT screen, solid wireless performance, and a proven design into a budget-friendly package. The Firstblood B81 is a statement piece for those willing to pay a premium for a unique transparent build and premium modding touches like screw-in stabilizers. For most users, the AK820 Pro's features and lower cost make it the more sensible choice.

Ajazz AK820 Pro

  • +Includes a customizable 0.85-inch TFT screen for system info and visuals.
  • +Offers a high-value package at a lower price point with strong user reviews.
  • +South-facing RGB LEDs allow for compatibility with a wider range of keycap profiles.
  • +Features a flex-cut polycarbonate plate and PCB for a softer typing feel.
  • +Lighter weight and more compact dimensions enhance portability.
  • −Case uses ABS plastic, which may feel less premium than other materials.
  • −Comes with plate-mounted stabilizers instead of screw-in type.
  • −The vendor description notes a 4-5 week pre-order shipping delay.

Firstblood B81

  • +Unique crystal-clear acrylic case offers a distinctive, showcase aesthetic.
  • +Includes screw-in stabilizers for potentially better tuning and less rattle.
  • +Comes with a crystal damping knob and dedicated multi-media keys.
  • +Uses ultra-high transparency PC keycaps in an FCSA profile.
  • −Significantly more expensive than the Ajazz AK820 Pro.
  • −Very heavy at 1500g and has a larger footprint, reducing portability.
  • −No user review score is available, making real-world performance less certain.
  • −North-facing RGB LEDs may cause interference with some Cherry-profile keycaps.

Which Keyboard Is Better for Your Needs?

The Ajazz AK820 Pro wins for gaming due to its stated polling rate and travel for its portability. The Firstblood B81 takes the office category with its multimedia keys and wins modding for its transparent showcase build and screw-in stabilizers. For programming, the keyboards are evenly matched on core layout and hot-swap features. Content creation leans toward the AK820 Pro for its functional TFT display.

GamingAjazz AK820 Pro
  • •The Ajazz AK820 Pro lists a 1k polling rate in wired and 2.4GHz modes, which is a spec not mentioned for the B81.
  • •It includes N-Key Rollover (NKRO) support, a feature not listed in the B81's specifications.
  • •Its lighter weight of 810g may allow for easier repositioning on a desk.
OfficeFirstblood B81
  • •The Firstblood B81 includes dedicated multi-media keys, which are not listed for the AK820 Pro.
  • •Its heavier 1500g weight provides more desk stability during typing.
  • •The vendor description for the B81 mentions a crystal damping knob for ergonomics.
ProgrammingTie
  • •Both use a 75% ANSI layout, preserving arrow keys and a function row.
  • •Both are hot-swappable, allowing for switch customization based on typing preference.
  • •Both offer Mac and Windows compatibility for cross-platform development.
TravelAjazz AK820 Pro
  • •The Ajazz AK820 Pro is significantly lighter at 810g compared to the B81's 1500g.
  • •It has a more compact form factor (327 x 136 x 40 mm vs. 480 x 220 x 100 mm for the B81).
  • •It includes a slightly larger 4000mAh battery versus the B81's 3750mAh.
ModdingFirstblood B81
  • •The Firstblood B81 comes with screw-in stabilizers, which are generally preferred over the plate-mounted stabilizers listed for the AK820 Pro.
  • •Its transparent acrylic case is designed as a showcase for internal components and lighting.
  • •The vendor page states it uses Kailh full-key hot-swappable sockets.
Content CreationAjazz AK820 Pro
  • •The Ajazz AK820 Pro's 0.85-inch TFT screen can display battery status, time, and connectivity info, useful for monitoring system status.
  • •Its south-facing RGB LEDs are compatible with more Cherry-profile keycaps without interference.
  • •It has a proven track record with numerous user reviews, while the B81 has no review score available.

Frequently Asked Questions (FAQ)

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