Keychron K5 Ultra vs Lofree Flow100
Choose the K5 Ultra for 8K polling, 2.4 GHz, and ISO layouts; choose the Flow100 for its gasket-mounted aluminum build.
KeebFinder may earn a commission when you buy through these links, at no extra cost to you.
4.8 (5)4.8 · 5 reviews
from$114at Keychron
No reviews
from$129at Lofree
Which one should you get?
Get the
Keychron K5 Ultra
Knob
Build quality in the top 15% of 100% boards under $150.
- 8000 Hz polling in wired and 2.4 GHz modes.
- Bluetooth, 2.4 GHz, and wired connectivity.
- Supports multiple ISO layouts as well as ANSI.
- Low-profile switches and keycaps only. Standard MX keycaps will not fit.
- North-facing LEDs. Cherry-profile keycaps can hit the switch housing.
Get the
Lofree Flow100
Battery
Build quality in the top 25% of 100% boards under $150.
- Aluminum case with a gasket mount, listed in the product specifications.
- 3000mAh battery capacity.
- Hot-swappable switches and low-profile PBT keycaps.
- Low-profile switches and keycaps only. Standard MX keycaps will not fit.
- No ISO layout. ISO-DE, UK, and other ISO variants are not offered.
Choose the Keychron K5 Ultra if you need 8K polling, 2.4 GHz wireless, ISO layout options, or its knob and customization features. Pick the Lofree Flow100 if its aluminum frame and gasket mount are the deciding details. Before buying either board for a keycap swap, account for their low-profile-only compatibility rules.
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.
Keychron K5 Ultra
Lofree Flow100
Connection
Bluetooth, 2.4 GHz, Wired
Bluetooth, Wired
Wireless for several devices and wired for lower latency
Battery
2,600 mAh
3,000 mAh
A larger battery means fewer cables during the day
Case material
ABS, Metal, Wood
Aluminum
Switch options
Clicky, Linear, Tactile
Linear, Tactile
Knob
Yes
No
- Keychron K5 Ultra
- Lofree Flow100
- Performance
- 9163
- Build quality
- 7566
- Productivity
- 9365
- Customizability
- 8960
- Portability
- 5656
- Layout size: 100%
- Hot-swappable
- Low profile
- Keycaps: PBT
What will you mostly use it for?
The K5 Ultra leads in the listed use cases, particularly where its 8K polling, 2.4 GHz connection, ISO layouts, or customization features matter. Its weight is lower than the Flow100's according to the product metadata, although both remain full-size boards. The Flow100's distinctive case and gasket mount may appeal to buyers who prioritize those construction details. Check the K5 Ultra's low-profile keycap restrictions before planning a keycap swap.
Pick the Keychron K5 Ultra
- The K5 Ultra lists an 8000 Hz polling rate in wired and 2.4 GHz modes.
- It offers 2.4 GHz wireless, Bluetooth, and wired connectivity, while the Flow100 lists Bluetooth and wired modes.
Keychron K5 Ultra vs Lofree Flow100 specs
Every tracked spec, side by side. Rows marked with a dot differ between the boards.
13 of 26 specs differ
Keychron K5 Ultra
Lofree Flow100
Switch options
Hot-swappable
Mount style
Low profile
Sound dampening
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
Compare prices
Live prices from the stores we track, cheapest in-stock offer first.
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.
Lowest price across stores, Amazon excluded.
ISO layouts by store
Which stores sell ISO-DE, UK, and the other regional layouts.
Keychron K5 Ultra
- Keychron (DE)
ISO-DE, ISO-FR, ISO-ES, ISO-IT
In stockDoes not ship to you
Lofree Flow100
No ISO layout at the stores we track.
Keychron K5 Ultra vs Lofree Flow100: your questions
The Keychron K5 Ultra lists an 8000 Hz polling rate in wired and 2.4 GHz modes. The Flow100's specifications do not list a polling rate.
Yes. The K5 Ultra lists ISO-DE, ISO-ES, ISO-FR, ISO-IT, ISO-PT, and ISO, as well as ANSI.
No. The Flow100 is listed as ANSI, and its compatibility rules say ISO variants are not offered.
No. Both keyboards require low-profile switches and keycaps, and standard MX keycaps will not fit.
Yes, both list hot-swappable switches. The K5 Ultra vendor describes swapping its Keychron Milk POM switches without soldering.
The Keychron K5 Ultra lists Bluetooth, 2.4 GHz, and wired connectivity. The Flow100 lists Bluetooth and wired connectivity.
The K5 Ultra lists a 2600mAh battery, while the Flow100 lists 3000mAh. The capacities alone do not establish which lasts longer in use.
Yes, the K5 Ultra lists an integrated knob. Keychron describes volume control as its default function and says it can be customized through Keychron Launcher.
The Lofree Flow100 lists a gasket mount, and Lofree describes IXPE and Poron foam in its mounting structure. The K5 Ultra vendor instead describes an acoustic structure including IXPE, EPDM, PET film, and bottom-case foam.
The K5 Ultra has north-facing LEDs, and its compatibility rules warn that Cherry-profile keycaps can hit the switch housing. Its low-profile switches also require low-profile keycaps.
QMK and VIA support are not listed for the Flow100, and a Lofree product review describes its customization options as limited. The K5 Ultra lists QMK support, while its vendor describes ZMK firmware and Keychron Launcher.
Not sold on either?
Still torn?
Answer a few quick questions and the keyboard finder ranks 2,000+ boards by how you will actually use yours.