GravaStar Mercury K1 vs Keychron Lemokey P1Portability vs Customization
Choose the GravaStar Mercury K1 for superior portability and battery life, or the Keychron P1 for deep customization and firmware support.
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No reviews
from$139at WhatGeek
5.0 (10)5.0 · 10 reviews
from$104at Keychron
Which one should you get?
Get the
GravaStar Mercury K1
Portability
Build quality in the top 50% of 75% boards under $150.
- Large 8000mAh battery for extended wireless use.
- Lighter weight of 1080g enhances portability.
- Features a unique 'three-sided streamer' RGB effect according to the vendor.
- No ISO layout. ISO-DE, UK, and other ISO variants are not offered.
Get the
Keychron Lemokey P1
Customization
Build quality in the top 5% of 75% boards under $150.
- Extensive firmware support for QMK and VIA, enabling deep customization.
- Available in multiple switch types (linear, tactile, clicky) and as a barebones kit.
- Supports a wide array of ISO and ANSI layouts for international users.
- South-facing LEDs. Shine-through legends stay dark, and some sculpted keycaps can clip the LED.
Your primary need dictates the choice. For a keyboard that prioritizes wireless endurance, a lighter build, and a distinctive light show, the GravaStar Mercury K1 is the clear pick. If your priority is a deeply customizable typing experience, from firmware and layouts to a barebones start, the Keychron P1 (Lemokey P1) offers significantly more flexibility and pro-grade features for the price.
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.
GravaStar Mercury K1
Keychron Lemokey P1
Battery
8,000 mAh
4,000 mAh
A larger battery means fewer cables during the day
Switch options
Linear
Clicky, Linear, Tactile
Knob
No
Yes
Weight
1,080 g
1,650 g
Heavier boards stay planted and lighter ones travel
QMK
No
Yes
The deep option when you want to remap every key
- GravaStar Mercury K1
- Keychron Lemokey P1
- Performance
- 6581
- Build quality
- 6788
- Productivity
- 6797
- Customizability
- 6396
- Portability
- 9281
- Layout size: 75%
- Connection: Bluetooth, 2.4 GHz, Wired
- Hot-swappable
- Case material: Aluminum
- Mount style: Gasket Mount
What will you mostly use it for?
The Keychron P1 is the stronger choice for gaming, programming, modding, and content creation, largely due to its confirmed high polling rate, extensive firmware support, and barebones kit availability. The GravaStar Mercury K1 wins for travel thanks to its lighter weight and larger battery. For general office use, both are competent, with the tie hinging on the GravaStar's battery advantage versus the Keychron's broader layout compatibility.
Pick the Keychron Lemokey P1
- The Keychron P1 Pro variant specifies a 1000 Hz polling rate in its 2.4 GHz and wired modes for low latency.
- It includes N-Key Rollover for simultaneous key presses.
- The manufacturer describes it as a 'custom gaming keyboard' with features like a programmable knob and macro column.
GravaStar Mercury K1 vs Keychron Lemokey P1 specs
Every tracked spec, side by side. Rows marked with a dot differ between the boards.
13 of 26 specs differ
GravaStar Mercury K1
Keychron Lemokey P1
Switch options
Hot-swappable
Mount style
Sound dampening
Screw-in stabilizers
Layout size
Layout standard
Ergonomics
Knob
Display
Connection
Max polling rate
Battery
USB-C
Case material
Plate material
Keycaps
Weight
Dimensions
Typing angle
Backlight
QMK
VIA
N-key rollover
Mac & Windows
Released
ISO layouts by store
Which stores sell ISO-DE, UK, and the other regional layouts.
GravaStar Mercury K1
No ISO layout at the stores we track.
Keychron Lemokey P1
Keychron
ISO-DE, ISO-UK, ISO-Nordic, ISO-SW
In stockShips to you
Keychron (DE)
ISO
In stockDoes not ship to you
Keychron (DE)
ISO-DE, ISO-UK, ISO-Nordic, ISO-SW
In stockDoes not ship to you
Compare prices
Live prices from the stores we track, cheapest in-stock offer first.
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Lowest price across stores, Amazon excluded.
GravaStar Mercury K1 vs Keychron Lemokey P1: your questions
The GravaStar Mercury K1 has a larger 8000mAh battery compared to the Keychron P1's 4000mAh battery. Based on the specifications, the GravaStar should offer significantly longer usage time between charges, which is a major advantage for wireless use.
The vendor description for the GravaStar K1 mentions a downloadable driver but does not specify support for open-source firmware like QMK or VIA. The Keychron P1, however, explicitly supports both QMK and VIA, as well as a proprietary Lemokey web app, for extensive key remapping and macro creation.
The Keychron P1 comes with double-shot PBT keycaps that the manufacturer describes as 'non-shine through.' It features south-facing RGB LEDs, which are designed to better illuminate the keys from the typist's perspective, but the keycaps themselves are not translucent for shine-through legends.
The Keychron P1 is more customizable. It is available as a barebones kit, supports QMK/VIA firmware, includes screw-in stabilizers, and uses multiple layers of acoustic foam (IXPE, PET, absorbing foam). The GravaStar K1 is hot-swappable but lacks the same level of documented firmware and barebones options.
Yes, both the GravaStar Mercury K1 and the Keychron P1 list Mac and Windows support in their specifications. The Keychron P1 also lists Linux compatibility and includes extra keycaps for Mac modifiers.
According to the Keychron product description, the P1 Pro (wireless version) and the wired P1 offer a 1000 Hz polling rate in their 2.4 GHz and wired modes. The GravaStar Mercury K1's polling rate is not specified in the provided information.
The GravaStar K1 is better suited for travel than the Keychron P1. It is over 500 grams lighter (1080g vs 1650g) and has a larger battery, reducing the need to carry a charger. Its 75% layout is also space-efficient for packing.
Yes, the Keychron P1 is listed with multiple switch type options, including tactile switches. The vendor page shows options like Keychron Super Brown switches. The GravaStar K1, according to its metadata, is only listed with linear switches.
The Keychron P1 offers far more layout options. Its metadata supports ANSI, ISO, ISO-DE, ISO-ES, ISO-FR, ISO-Nordic, ISO-SW, and ISO-UK layouts. The GravaStar K1 is listed with a standard ANSI layout.
The GravaStar Mercury K1 uses a POM plate, while the Keychron P1 uses a polycarbonate (PC) plate. Different plate materials affect the typing sound and feel, with POM often providing a deeper, softer sound and PC offering a more resonant, clacky sound.
Yes, the Keychron P1 product description highlights an aluminum rotary encoder (knob) that is programmable for functions like volume control or zoom. The GravaStar Mercury K1 does not list a knob as a feature.
Not sold on either?
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