Antminer S21 XP vs WhatsMiner M60S: efficiency vs price per TH
Bitmain's S21 XP holds the air-cooled efficiency crown. MicroBT's WhatsMiner M60S undercuts it on upfront cost per terahash. We ran the breakeven math at current difficulty.
Antminer S21 XP9.2
BEST AIR-COOLED EFFICIENCY
270 TH/s at 13.5 J/TH — the most efficient air-cooled miner Bitmain sells, at a premium price.
Full S21 XP review →
WhatsMiner M60S8.6
BEST PRICE PER TH
~186 TH/s at ~18.5 J/TH — noticeably cheaper upfront, at the cost of a higher power bill per coin mined.
Full WhatsMiner M60S review →
Side by side
*List prices swing with BTC price and demand — check current quotes before ordering. Specs verified JUL 2026. BTC {{ price }}
Category winners
Power efficiency (J/TH)ANTMINER S21 XP
Upfront price per THWHATSMINER M60S
Resale liquidityANTMINER S21 XP
Best for cheap power sitesWHATSMINER M60S
OUR VERDICT
Pick the Antminer S21 XP if your electricity isn't free — its efficiency edge compounds every day it runs and it holds resale value better. Pick the WhatsMiner M60S if you have cheap or stranded power and want to spread your capital across more units instead of fewer efficient ones.
Common questions
Which miner pays back faster?
It depends entirely on your power cost — compare both against your local electricity rate before ordering.
Do both need special cooling?
No, both are standard air-cooled units suitable for a typical mining container or garage setup with adequate airflow.
Which has better resale value?
Bitmain's Antminer line generally holds resale value better due to brand recognition and secondary-market liquidity.