I'm looking for a step through e bike and it seems like there are multiple confusing brands but the bikes all look like the same one, from £700 to £1500 ?
Are they actually better or worse or is it just paying for a real brand name and warrenty back up rather than straight from a China ?
It is absolutely worth paying the extra for warranty and backup.
I'd suggest buying one with a motor that can serviced and repaired, and with a battery from a reputable company. That way you avoid the risk of having a bike that is scrap in twelve months and possibly dangerous before then.
This has been one of the few pieces of advice I've been giving to a mate... it seems that anything not running standardised components from large, reputable companies is at best scrap in waiting, inviting disaster at worst.
What they said. I've had many, many people wheeling the remains of a Chinese made ebike to our shop in the hope of getting it fixed, only to be disappointed when we can't do anything.
The first problem is that most shops only deal with Bosch and Shimano motors, so if your no-name Chinese motor breaks after six months, you're on your own: believe me, the Anazom seller won't be interested in helping. Even if it doesn't, you can't update the software, and if your display shows an error message no-one will be able to find what it is.
But that's just the start: the "cheap" bike you buy online won't just have a no-name motor, the hydraulic brakes will be non-standard, so your local shop can't maintain them, because we won't know what brake fluid to use, the brake pads will be a funny shape, and they won't want to take the risk of liability. Wheels are often non-standard sizes to make the tires look "cool", so you may not be able to get a new inner tube. If the (non-standard) kickstand breaks (which is quite likely) and the bike falls over, you won't find a replacement gear hanger that fits... it goes on and on.
Unless you're lucky, you'll have a very heavy piece of scrap lurking in the shed for far longer than you ever rode it. Buy a bike with a motor that will be serviced locally to you, preferably from a local shop, and if that's too expensive, spend the 750-1000 gbp on a good normal bike: it'll still be working in twenty years.