
The 453x has a simple, cool exterior for a compact entry-level handset. It’s so simple that there’s nothing more to the exterior except for a 2.5mm handsfree socket on one side, a microSD card slot on the other, and a mini USB port on the bottom for PC connectivity and the charger
Features and Performance:
The 453x is a simple phone but Bleu has managed to incorporate some pretty good features. For starters the 453x has a decent (but not loud enough for my taste) music player. The player has a few EQ presets to choose from, although the adjustment cannot be heard unless you select it by pressing the ‘OK’ option (I didn’t like that).

The FM radio was pretty good though. The reception was good in most places and there's a recording feature as well. It allows users to record files in WAV or AMR, but unfortunately doesn’t deliver too well on reproduction. The playback of those files sounded a bit hollow.
The 453x has a voice recorder and a video player that reads 3GP and reportedly AVI and MP4 files, though I couldn’t get them (except 3GP) to read. Then again it does depend on the encoding and of course, whether you would really watch a video on a handset with this reception is also a BIG question.

Other entertainment features include a melody composer and a couple of games including Sudoku.