HTC One

The All New HTC One (M8), announced on March 25, 2014, featured a 5-inch Full HD Super LCD3 display, a curvier aluminum design, and on-screen buttons. It was powered by a Snapdragon 801 processor with 2GB RAM and a 2,600mAh battery. Its standout feature was a dual-camera system on the back, consisting of a 4MP UltraPixel camera and a 2MP camera for depth information. It also included upgraded BoomSound speakers, a microSD card slot, and ran Android 4.4.2 with HTC Sense 6.

Yes, through an initiative called 'HTC Advantage' announced on February 20, 2014. HTC promised a one-time free screen replacement within the first six months of ownership for the HTC One, One Mini, and One max. However, this program was initially only for US-based owners and did not cover devices purchased before the announcement date.

In a March 2015 spec comparison, the HTC One M9 had advantages like a Super LCD 3 display, expandable memory via microSD, a higher-resolution 20MP rear camera (replacing the UltraPixel system), a larger battery, and BoomSound speakers. The Samsung Galaxy S6 countered with a higher-resolution Super AMOLED display, more internal storage options (64GB & 128GB), Optical Image Stabilization, a higher-resolution front camera, wireless charging, a fingerprint scanner, and a heart-rate monitor. The comparison concluded it was a close call dependent on user priorities.