This or That - Which Zero G Camping Chair Should I Buy?

I have a back in a considerable amount of pain right now but can manage with meds, heating pad, and not laying flat at night :-( Next week, we have a beach front tent camping trip planned that I am still in awe were were able to get. Hence, considering the above Zero G chairs to sit and, unfortunately, sleep.

Currently considering the following:

Need extra wide (heard it's more comfortable to sleep) + weight limit of 300 pounds as my elderly dog will want to cuddle on my lap too.

• GCI Outdoor Freeform Zero Gravity Lounger Chair
• Timber Ridge Zero Gravity Chair (via Costco)

The GCI one appears available at our local Dicks and may be able to lock the position better but has slightly poorer reviews. The Costco one requires ordering online with inability to lock in position.

Does anyone have any feedback on either?