The GZ Guide 10 recharger holds 4xAA rechargeable batteries and the NiMH AA batteries I have in mine are 2000 mAh each for a total of 8000 mAh; the spec sheet shows four 2300 mAh batteries for 9200 mAh total. The Mophie Powerstation holds 6000 mAh.

IMO the Guide 10 Plus Solar Kit is a better deal. It has the recharger and it comes with a solar panel if the opportunity arises. You can always carry additional AA batteries.

For the record, no affiliation with either Mophie or Goal Zero.