I have the 4K Pro 5-20. Couple things. The one shot zero is amazing. It really works. The range on this scope isn’t that great, but I am new to scopes so I have been told I might have expected too much. The pro does day and night and does it well. The night vision is amazing with a good IR. Upgrade the one it’s sent with. It’s a heavy package. I mounted the ABL1000 range finder on mine so it’s even more heavy. I have to use a tripod. It spotted coyotes when my hunting partners regular light scope combo did not. Be prepared to update firmware. It’s sorta the key to the whole deal. They keep making them better with each firmware release. Long story short. For the cost it cannot be beat. The recording capability. The one shot zero. The range finder. The streaming ability that allows you to spot for others at night, the battery lasts 20 hours on a charge. It’s worth it. There are headaches; but for 700 bucks.. try it, but it from amazon, buy the extended warranty. It’s Worth it too.