There is a huge range of on-camera monitors on the market currently, some are priced very reasonably, some will cost you a bit more of a premium, but will give you a huge range of features. The SWIT CM-55 C is an affordable, lightweight on-camera monitor, that doesn't mess about when it comes to features, for an affordable monitor, having this many features packed inside is incredible.
So starting with the screen, the monitor has a 5", 1920x1080p IPS display, with very good viewing angles, and a brightness of 450 nits. There is one HDMI 1.4 port on the side, which will take a 1080p 60p video signal, or a 4K 30p signal. To power the monitor, you have three options, first there is a Micro USB port on the side, which can take power from something like a GP power bank to power the monitor. Or on the back, there are two battery options built in, which is something usually reserved for more expensive monitors. You can choose from Canon LP-E6 batteries for a more lightweight setup, or Sony NP-F batteries if you require much longer run times.
There are a whole host of professional features, such as waveforms, peaking, false colour, vectorscopes, zebras, custom 3D LUT's, crop marks etc. All in a very affordable, lightweight package. On the side of the monitor, there is a DC output above the HDMI input, which allows you to power DSLR's or mirrorless cameras, using one of SWIT's dummy batteries.
If you're looking for a menu overview of the SWIT CM55 C, then skip to 3 minutes into the video above.
Now for the price, there is no doubt that this monitor has a lot packed into it, and if you're just starting out, and need professional tools on an on-camera monitor, this is a great choice. There are two 1/4 20" screw threads on the monitor, and it comes with an L bracket mount that lets the monitor tilt up or down.