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| Newmen GM840 Pro | Xinmeng M75 Pro | Keychron J2 |
80 Overall/ Value 79.7Build Quality 74.9Customizability 79.8Performance 81.6Productivity 81.8Portability 80.1![]() | 77 Overall/ Value 77.4Build Quality 71.4Customizability 86.9Performance 70.3Productivity 74.0Portability 73.4![]() | |
0.0 stars (0 reviews) | 0.0 stars (0 reviews) | 4.3 stars (9 reviews) |
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Name Newmen GM840 Pro | Name Xinmeng M75 Pro | Name Keychron J2 |
Release year 2022 | Release year 2024 | Release year 2025 |
Switch Options Linear, Clicky | Switch Options Linear, Silent | Switch Options Linear, Tactile, Clicky |
Profile Normal Profile | Profile Normal Profile | Profile Normal Profile |
Hot Swappable | Hot Swappable | Hot Swappable |
Layout Size 75% | Layout Size 75% | Layout Size 75% |
Layout Standard ANSI | Layout Standard ANSI | Layout Standard ANSI |
Layout Ergonomics Normal | Layout Ergonomics Normal | Layout Ergonomics Normal |
Knob Support | Knob Support | Knob Support |
Display Support | Display Support TFT | Display Support |
Mac/Win Support | Mac/Win Support | Mac/Win Support |
Multi-Media Keys | Multi-Media Keys | Multi-Media Keys |
USB-C | USB-C | USB-C |
USB passthrough | USB passthrough | USB passthrough |
Connection Bluetooth, 2.4 GHz, Wired, Wireless | Connection Bluetooth, 2.4 GHz, Wired, Wireless | Connection Bluetooth, 2.4 GHz, Wired, Wireless |
Polling Rate - | Polling Rate 1000 Hz | Polling Rate 1000 Hz |
Battery capacity 2000 mAh | Battery capacity 5000 mAh | Battery capacity 3750 mAh |
Hall Effect Support | Hall Effect Support | Hall Effect Support |
QMK Support | QMK Support | QMK Support |
VIA Support | VIA Support | VIA Support |
VIAL Support | VIAL Support | VIAL Support |
N-Key Rollover | N-Key Rollover | N-Key Rollover |
Rapid Trigger | Rapid Trigger | Rapid Trigger |
Mount Style - | Mount Style Gasket Mount | Mount Style - |
Screw in Stabilizers | Screw in Stabilizers | Screw in Stabilizers |
Sound Dampening | Sound Dampening | Sound Dampening |
Backlight Rgb | Backlight Rgb | Backlight Rgb, White |
Case Colors | Case Colors | Case Colors |
Case Material Plastic | Case Material Plastic | Case Material - |
Keycaps Material PBT | Keycaps Material PBT | Keycaps Material PBT |
Dimensions 39 x 121 x 31 mm | Dimensions 20 x 326 x 152 mm | Dimensions - |
Weight 747g | Weight 900g | Weight - |
The Newmen GM840 Pro is a compact 75% mechanical keyboard suited for users who want a balance of functionality and portability with versatile connectivity. It fits well for hobbyists who like to customize switches without soldering, and for users needing wireless options alongside wired use. Its artistic keycaps and RGB lighting also appeal to those who value aesthetics in their setup.
The keyboard ships with G-Pro or Box switches, known for tactile and clicky options. The hot-swappable design encourages trying different switch types. Muffling pads help lower sound levels, making it more suitable for shared spaces. Dye-sublimated PBT keycaps provide durability and a textured feel, resisting shine from prolonged use.
Users can switch between wired and two wireless modes depending on their setup. Bluetooth 5.0 supports multiple device connections, useful for switching between computers or mobile devices. The 2.4GHz wireless mode offers a stable connection with low latency, while wired mode ensures zero input delay and charging simultaneously.