Nord Buds 3

This is surely the best for overall features. It's an all rounder.. Oneplus Nord buds 3 pro has too much base and less anc. I think this one is the best under 3k... better than Oneplus, Cmf. No oppo option here. But yeah above 3k there r other better sounding buds as well like- Oneplus Buds 4, Oppo enco air 3 pro etc which r around 5k. U made a good decision. I bought Oneplus Nord Buds 3 under 1700 and it's going well for me rn

i am using oneplus nord buds 3 and i cant use it for longer period as it gives me earpain, never had this issue before.

Oneplus Nord Buds 3 has the slam and rumble you want. Anything by CMF is also very good.

I've used both and can say Realme T310 have better ANC and transparancy mode along with few extra features which can be accessed via app. On the other hand, OP3 has better fit and they felt lighter, also the app is way better and unlike realme app wouldn't give you ton of ads. T310 felt bulky, kept coming out of my ear and if you wear it with a cap or helmet you're doomed. OP3 are more expensive and the sound does not justify the extra money paid for it. Honestly it would go for OP for their better fit and comfort (highly subjective thing). For the best sound quality I'd honestly suggest you to go with IEM's but incase you want TWS only then from sound perspective I'll suggest T310.

I use buds in the range of 2-2.5k because those are comfortable for running and won't cry about it if it doesn't last much beyond the warranty period. My oneplus nord buds 3 Pro lasted a year and 4 months. After that, I've bought nord buds 3. Below 2k, you're making some trade-offs with basic features imo.