I have two of them.
I have a Worx and a Ryobi
This is the Worx I have:
https://www.amazon.com/gp/product/B00EU6H7N8/ref=oh_aui_search_detailpage?ie=UTF8&psc=1
This is the Ryobi:
https://www.amazon.com/gp/product/B00BMBCOYQ/ref=oh_aui_search_detailpage?ie=UTF8&psc=1
The Ryobi was purchased when I changed my weed wacker from a gas one to electric.
Out of the 2, I prefer the Ryobi, it has much stronger wind and lasts longer battery wise.
The Worx is good too and I was happy with it until I got the Ryobi .
If price is a factor, get the Worx as it will have everything you need, the Ryobi will require a battery and charge still and will cost you more money.