I'd suggest buying the blood pressure machine that matches the cuff. Each of these at-home machines tend to have specific connectors...and (it's been a bit but...) the Lovia cuff doesn't look like it has the kind of connector that would fit into the Omron (or at least my old Omron used a long hard plastic connector vs the one I see in the link.)

I can say nothing about the accuracy of Lovia...but the Amazon link I'm seeing has the same number of stars (this was in the "often bought with" section of the page:

https://www.amazon.com/Pressure-Accurate-Automatic-Monitoring-Approved/dp/B07Z78XL9H/ref=pd_bxgy_2/136-2869670-2730967?_encoding=UTF8&pd_rd_i=B07Z78XL9H&pd_rd_r=eec5d4d4-ad95-4a60-8d17-f34cd81c0b27&pd_rd_w=zzURC&pd_rd_wg=7yRXa&pf_rd_p=ce6c479b-ef53-49a6-845b-bbbf35c28dd3&pf_rd_r=TW3M8T5RCTCYDECCJ7W7&psc=1&refRID=TW3M8T5RCTCYDECCJ7W7

Additionally...I'd search for the cuffs and see what brands they have...I found Medline. Again, not a brand I'm familiar with, but it's a very large cuff:

https://www.amazon.com/Blood-Pressure-Cuff-X-Large-Adult/dp/B00KG8FEHA/ref=sr_1_8?dchild=1&keywords=xl+blood+pressure+cuff&qid=1602630044&sr=8-8

and they make a montior too...but only four stars.

Alternatively...if you are mobile/maybe they deliver if you're not venturing out...call up your local pharmacies and see what they have on hand/in stock. That's how I found my old Omron with a larger cuff. (Series 5; lasted a good five years.) Good luck.