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Head to head · Prices checked Oct 21, 2026

Ajazz AK870 vs Yunzii B75 ProScreen vs High Polling Rate

Choose the Ajazz AK870 for its customizable screen and visual flair, or the Yunzii B75 Pro for its high 4000Hz polling rate and more compact layout.

Ajazz AK870 Tri-Mode Wireless Mechanical Keyboard

Screen

Ajazz AK870

4.8 · 5 reviews

from$83at Mechkeys

Shop nowSee all prices

Quick verdict

Which one should you get?

Get the

Ajazz AK870

Screen

If you want

  • Features a customizable 1.06-inch TFT color screen for info and GIFs.
  • Detailed 5-layer filling gasket structure with sound-absorbing materials.
  • Includes a single-key slotted PCB and slotted PC positioning plate.

And can live with

  • Uses an ABS case, which may feel less premium than metal alternatives.
  • Lacks an explicitly stated high polling rate for competitive gaming.
  • The screen module may not be useful for all users.

Get the

Yunzii B75 Pro

High Polling Rate

If you want

  • Explicitly lists a 4000Hz polling rate for high-performance gaming.
  • Includes N-key rollover for accurate multi-key input.
  • Offers a choice of linear, tactile, and clicky switch types.

And can live with

  • No screen or display feature is present.
  • User reviews are not available in the provided metadata for verification.
  • The case material is not specified in the provided details.

Bottom line

Your priority should guide this choice. For a visually distinctive setup with deep sound modding potential and a functional screen, the Ajazz AK870 is the compelling option. If your main concern is gaming performance with the lowest possible latency, and you prefer a more compact layout, the Yunzii B75 Pro's 4000Hz polling rate makes it the better pick. Both are competent, versatile keyboards for the price.

What actually differs

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 AK870

Yunzii B75 Pro

  • Layout size

    80%

    75%

  • Case material

    ABS

    Plastic

  • Switch options

    Linear

    Clicky, Linear, Tactile

  • Display

    TFT

    None

  • Weight

    970 g

    937 g

KeebFinder scores

How we score
  • Ajazz AK870
  • Yunzii B75 Pro
Performance
51
75
Build quality
55
60
Productivity
83
91
Customizability
73
78
Portability
73
80

What they share

  • Connection: Bluetooth, 2.4 GHz, Wired
  • Hot-swappable
  • Battery: 4,000 mAh
  • Mount style: Gasket Mount
  • Knob
  • Sound dampening
See every spec side by side

Best for

What will you mostly use it for?

The Yunzii B75 Pro takes a clear lead for gaming due to its high polling rate, while the Ajazz AK870 is stronger for modding and visual customization. For office use and general productivity, they are closely matched, sharing core wireless and ergonomic features. Travelers might prefer the Yunzii's slightly more compact form factor, whereas programmers and content creators may value the Ajazz's additional keys and customizable display.

For gaming

Pick the Yunzii B75 Pro

  • The Yunzii B75 Pro lists a 4000Hz polling rate for lower latency.
  • It includes N-key rollover for accurate simultaneous key presses.
  • Its 75% layout is slightly more compact than the AK870's 80% design.

From real owners

What owners say

Ratings and quotes collected from verified store reviews, including the critical ones.

Ajazz AK870

4.8

5 owner reviews

Praise
“I love this keyboard. The sound is slightly clicky and mostly creamy. Super smooth to work on. I’ve also set up the RGB to match my PC ones.”
LaureVerified buyer· via Epomaker

Yunzii B75 Pro

No owner reviews collected yet.

Full specs

Ajazz AK870 vs Yunzii B75 Pro specs

Every tracked spec, side by side. Rows marked with a dot differ between the boards.

11 of 24 specs differ

Ajazz AK870

Yunzii B75 Pro

Typing & switches

Switch options

Linear
Clicky, Linear, Tactile

Hot-swappable

Yes
Yes

Mount style

Gasket Mount
Gasket Mount

Sound dampening

Yes
Yes

Screw-in stabilizers

No
Yes

Layout

Layout size

80%
75%

Layout standard

ANSI
ANSI, Dvorak, ISO

Ergonomics

Standard
Standard

Knob

Yes
Yes

Display

TFT
None

Media keys

No
Yes

Connectivity & battery

Connection

Bluetooth, 2.4 GHz, Wired
Bluetooth, 2.4 GHz, Wired

Max polling rate

—
4,000 Hz

Battery

4,000 mAh
4,000 mAh

USB-C

Yes
Yes

Build & materials

Case material

ABS
Plastic

Plate material

—
Aluminum

Keycaps

PBT
PBT, PC

Weight

970 g
937 g

Dimensions

21 x 370 x 148 mm
42 x 334 x 144 mm

Backlight

RGB, south-facing
RGB, south-facing

Firmware & software

N-key rollover

No
Yes

Mac & Windows

Yes
Yes

Extras

Released

2024
2024

Where to buy

Compare prices

Live prices from the stores we track, cheapest in-stock offer first.

Lowest price across stores, Amazon excluded.

Ajazz AK8703 stores
  • MechkeysCN

    In stock
    $83Visit
  • AmazonGlobal

    Check price
    Visit
  • WhatGeekCN

    Out of stock
    $69Visit
  • YunziiCN

    In stock
    $79Visit
  • MechkeysCN

    In stock
    $79Visit
  • AmazonGlobal

    Check price
    Visit

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FAQ

Ajazz AK870 vs Yunzii B75 Pro: your questions

The Yunzii B75 Pro is likely better for competitive gaming. Its product listing explicitly states a 4000Hz polling rate, which can reduce input latency. The Ajazz AK870's polling rate is not specified in the provided information.

Yes, according to the vendor description, the Ajazz AK870's 1.06-inch TFT screen can display time, date, battery level, and keyboard status. It also supports custom GIF animations for personalization.

Yes, both the Ajazz AK870 and Yunzii B75 Pro list Mac and Windows support in their specifications. The Ajazz vendor page also mentions compatibility with iOS and Android devices.

Yes, both keyboards feature hot-swappable PCBs. The Yunzii B75 Pro listing specifies compatibility with both 3-pin and 5-pin mechanical switches.

Both keyboards have the same 4000mAh battery capacity. Actual battery life will depend on usage patterns, backlight brightness, and connection mode, but the capacity is identical.

The Yunzii B75 Pro is slightly more compact. It measures 334mm in width compared to the Ajazz AK870's 370mm, and it weighs 937g versus 970g, making it a marginally better option for portability.

Yes, both the Ajazz AK870 and Yunzii B75 Pro use a gasket mount style. The Ajazz vendor description details a 5-layer filling gasket structure for sound dampening.

The Yunzii B75 Pro offers a choice of switch types. The metadata lists linear, tactile, and clicky options, and the vendor page names specific switches like the Milk Linear and Blue Grey Tactile.

Yes, the Yunzii B75 Pro includes screw-in stabilizers as a listed feature. This typically allows for more secure installation and easier tuning compared to clip-in stabilizers.

According to the Ajazz vendor description, the screen module can be swapped out for three additional keys, offering flexibility if you prefer more keys over the display.

The Ajazz AK870's construction is described in more detail. Its vendor page mentions a 5-layer filling gasket structure, single-key slotted PCB, and slotted PC plate specifically aimed at reducing noise.

Both keyboards use PBT keycaps. The Yunzii B75 Pro vendor description specifies they are double-shot PBT, while the Ajazz AK870 listing mentions two-color injection molding PBT keycaps.

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