Um. The HTC One MIGHT be similar, since its similar screen size i think BUT its not flat on the back, its actually curved.
so the HTC First is UNIQUE yey haha. I got my awsome case for like 2 bucks off cellphoneshop.net
its clear and 2 piece and doesnt come off when the phone is dropped and it is quite thick so it protects the phone really really well.
Current Phone: HTC First - Rooted - Sense 4+ @JMZ
LG Thrive - CM10.1 @Rashed97 - Overclocked to 800mhz
ZTE Avail - AOSP 2.3.7
Owner of XDA Premium App