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Head to head · Prices checked Oct 23, 2026

Firstblood B81 vs Weikav NUT87

Get the Firstblood B81 for knob and screw-in stabilizers. Get the Weikav NUT87 for the 10,000 mAh battery.

WhatGeek x FirstBlood B81 Crystal Transparent Wireless Mechanical Keyboard

Knob

Firstblood B81

from$149

90-day low

Check priceSee all prices

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.

Firstblood B81

Weikav NUT87

  • Battery

    3,750 mAh

    10,000 mAh

  • Case material

    Acrylic

    Aluminum

  • Knob

    Yes

    No

  • Screw-in stabilizers

    Yes

    No

  • Backlight

    RGB, north-facing

    RGB, south-facing

KeebFinder scores

How we score
  • Firstblood B81
  • Weikav NUT87
Performance
52
84
Build quality
61
72
Productivity
91
59
Customizability
79
68
Portability
83
87

What they share

  • Layout size: 75%
  • Connection: Bluetooth, 2.4 GHz, Wired
  • Hot-swappable
  • Mount style: Gasket Mount
  • Sound dampening
See every spec side by side

Full specs

Firstblood B81 vs Weikav NUT87 specs

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

9 of 23 specs differ

Firstblood B81

Weikav NUT87

Typing & switches

Switch options

Linear
—

Hot-swappable

Yes
Yes

Mount style

Gasket Mount
Gasket Mount

Sound dampening

Yes
Yes

Screw-in stabilizers

Yes
No

Layout

Layout size

75%
75%

Layout standard

ANSI
—

Ergonomics

Standard
Standard

Knob

Yes
No

Display

None
None

Media keys

Yes
No

Connectivity & battery

Connection

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

Max polling rate

—
8,000 Hz

Battery

3,750 mAh
10,000 mAhBetter

USB-C

Yes
No

Build & materials

Case material

Acrylic
Aluminum

Plate material

—
FR4, Polycarbonate

Keycaps

ABS, PBT, PC
—

Weight

1,500 g
—

Dimensions

100 x 480 x 220 mm
—

Backlight

RGB, north-facing
RGB, south-facing

Firmware & software

Mac & Windows

Yes
No

Extras

Released

2023
2026

Where to buy

Compare prices

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

Lowest price across stores, Amazon excluded.

  • AmazonGlobal

    Check price
    ~$149Visit
  • WhatGeekCN

    Out of stock
    $149Visit
  • MechkeysCN

    Out of stock
    $189Visit
Weikav NUT872 stores
  • ktechsSG

    In stock
    $140Visit
  • AmazonGlobal

    Check price
    ~$140Visit

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.

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