Hypersense vs sensa HD haptic strength

Anyone that's owned both the v3 hypersense or pro model and upgraded to the V4 pro how are the sensa haptics are they actually improved as they're already pretty good on the v3 and have they got any weaker or preferably stronger than the max setting on the older models as looking at them as a potential upgrade but I worry about the battery life claims with the haptics on as I only really use my hypersense set to max and I worry they're not gonna be as strong as the kraken v3 hypersense and pro or the nari ultimate I don't wanna upgrade if the haptics are weak as shit