Samsung's side-mounted fingerprint sensor outperforms under-display alternatives
A reviewer argues that Samsung's side-mounted fingerprint sensor on the Galaxy Z Fold 8 and Z Fold 8 Ultra is better than the under-display sensors he has tested. The sensor sits in the power key, making it easy to find and use with one hand. The physical placement gives it a tactile advantage over in-screen solutions.
Andy Boxall, a longtime mobile technology writer, tested Samsung's Galaxy Z Fold 8 and Galaxy Z Fold 8 Ultra. He found their fingerprint reader, built into the side power button, better than the under-display sensors he has used. Its location makes it easy to find with a thumb and operate one-handed, giving it a tactile edge.
During setup, Boxall says users can keep a finger on the sensor and move it without lifting, avoiding repeated angle warnings. He contrasts this with the Galaxy S26 Ultra's twelve separate repositioning motions and the Pixel 11 Pro's roughly doubled count. He also describes the Fairphone Gen 6+ as slower and less accurate.
This review may shape how phone buyers weigh fingerprint sensor design, especially users who value one-handed access and quick setup. If side-mounted readers gain attention, manufacturers could reconsider placing biometric hardware in buttons rather than solely beneath screens. That shift may influence accessibility and daily usability for people with different hand sizes or dexterity needs, though individual preferences and phone form factors will likely remain decisive.