I bought my first folding bike, an Oyama East Village, online. Prior to buying I did not think to check on the mobility of the bike after folding. Fortunately the thing folded in such a way that the two main wheels end up side-by-side, neatly aligned straight, so that I could just simply push it around by holding the seat, sort of like a stroller.
I later discovered that this was quite an unusual feature. Apparently not many other bikes do the same. The Brompton just trundles along on those small trolley wheels. Having compared this with my own I'm not really a fan.
The advantages of the main-wheel fold are many. The weight of the bike is much less relevant as you aren't lifting it about. Big wheels easily take on road and pavement imperfections and the bike is most easily maneuvered in its folded configuration. When in the company of non riders I sometimes stroll with them for miles while pushing my folded bike along in front of me.
Descriptions and reviews of folding bikes on the internet speak very little of what the bike is like to handle after folding. Most talk of performance in the unfolded configuration. This is very important too of course, but for some of us the management of the bike in its folded form can be more important.
This post is just to gather information about bikes of this type. The community knows better than just me searching on my lonesome. Please therefore share if you know of any bike brand or model that is convenient to handle after folding. Actual experiences are also greatly appreciated.