One note of warning. You are 5'1" which is as far as bike makers go, is xxxs.
Take care with the size of the bike and with the dimensions. The critical dimension for sizing these days is the reach or length of the bike (saddle to bars), since they allow plenty of standover clearance. The wheel size is an important factor in reach. Squishing large 700c hybrid wheels into a small frame requires some bodging of the frame geometry and stretching of the frame so the smallest sizes are proportionately quite long.
The usual advice around here is that riders under about 5'2" should avoid full-sized standard wheels (700c) and opt for one of the smaller sizes such as 650c (small road racing size) or 26" MTB.
The tyre selection for 650c can be limitting (to very narrow width only) but 26" MTB size tyres are available in the form of road slicks (ie not knobbly) and in useful sizes from 1.25" upwards.
I have bikes with hybrid size and MTB size wheels and there is little difference in efficiency due to the wheel diameter.
The other dimensions which you need to keep an eye on are:
The length of the cranks: 170mm is medium so look for 160 or 165mm. Avoid long 175mm at all costs.
The height of the cranks off the ground (bottom bracket height). For small riders, a high bottom bracket makes mounting the bike much harder.
Handlebar width: can be cut down to size with a hacksaw!.
Brake lever reach with small hands.
Most bikes using 26" wheels are either off-road style or low-performance comfort style. Canondale (Bad Boy) and Scott (Sub) both make quite high performance 26" road bikes marketed as sports urban style.
Terry Precision specialize in small bikes for womens and make a hybrid style
bike using 26"MTB wheels. Terry usually take care with all the dimensions and components to fit smaller women.