Best Garmin handheld devices not requiring firmware patching for unlocked .img maps?

[Hyper]

Appreciated features: larger hi-resolution screen, fast processor.

I now use the older Garmin Oregon 450t for hiking and geocaching. It still works fine but it is fairly slow and the compass direction is not very good.
I'm interested in buying a secondhand Garmin of a newer generation with a larger screen and faster hardware. I want to be able to use unlocked .img maps without having to patch my Garmin firmware.

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Which devices can you recommend? (Garmin Oregon/Montana/Monterra even?)

Hyper Reviewed by Hyper on 16th April 2023. Best Garmin handheld devices not requiring firmware patching for unlocked .img maps? Appreciated features: larger hi-resolution screen, fast processor. I now use the older Garmin Oregon 450t for hiking and geocaching. It still works fine but it is fairly slow and the compass direction is not very good. I'm interested in buying a secondhand Garmin of a newer generation with a larger screen and faster hardware. I want to be able to use unlocked .img maps without having to patch my Garmin firmware. Which devices can you recommend? (Garmin Oregon/Montana/Monterra even?) Rating: 5