MonsGeek FUN60 Ultra

The FUN60 Ultra keeps the FUN60 layout and switch spec (Akko Glare magnetic switches, 8,000 Hz polling in wired and 2.4GHz modes, Rapid Trigger down to 0.01 mm) but moves to a CNC aluminum case, still tray-mounted with an aluminum plate, and a 4,000 mAh battery on the tri-mode build. MonsGeek sells it with either Hall-effect or TMR (tunnel magnetoresistance) sensors. On the TMR version MonsGeek's "MagMech" feature lets magnetic and 5-pin mechanical switches be mixed on one board, for example magnetic switches on WASD and mechanical elsewhere. Its driver is the same web app as the Pro.

TechteamGB compared the FUN60 Pro with the TMR Ultra. Its conclusion was that latency between the HE and TMR boards was close, which fits with both using the same chip, and that the Ultra felt nicer in use but not because of the TMR sensor. It also noted MonsGeek sells an HE version of the Ultra for less than the TMR one. HLPlanet, reviewing the later M1 V5 TMR, reached a similar view that the practical difference between TMR and Hall effect is small for now.

So the Ultra is the one to pick over the FUN60 Pro if you want a metal case and wireless in a 60%, or want the option of mechanical switches. If you only want the cheapest Rapid Trigger board, the Pro does the same job in plastic.