Which is better for a gate or fence?

The IU32. It has keypads and keyed cylinders on both sides, so people on either side can enter with a code or key. The Evanshow is a single-sided knob.

Is the IU32 worth the extra money?

Only if you need two-sided control. The Evanshow costs $31.99 and adds fingerprint, NFC and app unlocking; the IU32 costs $119.99 and adds a second keypad and cylinder instead.

Which has more ways to unlock?

The Evanshow. It offers fingerprint, keypad code, NFC card, mechanical key and the Tuya app. The IU32 offers keypad code and mechanical key on each side.

Which lasts longer on batteries?

The IU32 states over a year on 4 AAA batteries plus a USB-C emergency backup. Evanshow does not publish a battery life figure.

Will the Evanshow fit my door?

It fits doors 1.18 in to 1.97 in thick and is ambidextrous. The IU32 does not state a door thickness range, so measure before ordering.

Can I use either one outdoors?

The IU32 is described as all-weather for indoor or outdoor gates. The Evanshow has no stated weather rating, so keep it on a covered or interior door.

IU32 Double Sided Keypad Door Knob vs Evanshow Fingerprint Door Lock Biometric Door Knob with Keypad Keyless Entry

Buy the Evanshow if you want the cheapest way to get keyless entry on a single door: it adds a fingerprint reader, NFC cards and a Tuya app for $31.99 at Amazon as of November 4, 2026. Buy the IU32 if you need a keypad on both sides of a gate or fence, where the Evanshow's one-sided knob cannot help. The IU32 costs $119.99 at Amazon as of November 4, 2026, roughly four times the Evanshow, and that premium buys two-way control, not more unlock methods.

Today the Evanshow Fingerprint Door Lock Biometric Door Knob with Keypad Keyless Entry costs $88.00 less at its best price.

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