MicroBT Whatsminer M21 vs MicroBT WhatsMiner M70S+
Side-by-side specs, profitability, and home mining comparison.
Quick verdict
For most buyers the MicroBT WhatsMiner M70S+ is the stronger pick — it leads on 3 of 5 head-to-head factors. The MicroBT Whatsminer M21 runs 31.0 TH/s at 60 J/TH; the MicroBT WhatsMiner M70S+ runs 262.0 TH/s at 12.5 J/TH.
Specs verified against the D-Central Mining Bible \xc2\xb7 June 2026
Specifications Comparison
| MicroBT Whatsminer M21 | Specification | MicroBT WhatsMiner M70S+ |
|---|---|---|
| 31.0 TH/s | Taux de hachage | 262.0 TH/s |
| 1,860 W | Consommation électrique | 3,275 W |
| 60.0 J/TH | Efficiency | 12.5 J/TH |
| — | Niveau de bruit | 75 dB |
| 7.2 kg | Weight | 13.5 kg |
| 6,346 BTU/hr | BTU Output | 11,174 BTU/hr |
| 11/100 | Home Mining Score | 8/100 |
| — | Release Year | — |
| SHA-256 | Algorithme | SHA-256 |
| MicroBT | Manufacturer | MicroBT |
Profitability Comparison
MicroBT Whatsminer M21
MicroBT WhatsMiner M70S+
Based on BTC price of $63,911 and current network difficulty as of Jun 13, 2026. Actual results vary.
Verdict
Run the numbers across every spec and the MicroBT WhatsMiner M70S+ edges it: 3 of 5 factors go its way (efficacité, hashrate, niveau sonore). Where it pulls away hardest is 745% more hashrate (31.0 vs 262.0 TH/s). That said, the MicroBT Whatsminer M21 isn't beaten everywhere — it still wins consommation électrique and score de minage domestique. Cross-check the spec deltas and operating-cost table above against your own electricity rate before deciding.
Spec Deltas
Here is every spec where the MicroBT Whatsminer M21 and MicroBT WhatsMiner M70S+ actually differ, with the gap quantified:
- MicroBT WhatsMiner M70S+ 745% more hashrate (31.0 vs 262.0 TH/s)
- MicroBT Whatsminer M21 43% better power draw (1,860 vs 3,275 W)
- MicroBT WhatsMiner M70S+ 79% better efficacité (60.0 vs 12.5 J/TH)
- MicroBT Whatsminer M21 47% better weight (7.2 vs 13.5 kg)
- MicroBT WhatsMiner M70S+ 76% more heat output (6,346 vs 11,174 BTU/hr)
- MicroBT Whatsminer M21 38% more score de minage domestique (11.0 vs 8.0)
Best For...
Best for Profitability
TieBoth miners produce similar daily profit.
Best for Home Mining
MicroBT Whatsminer M21Score: 11/100. 0 dB noise level.
Best for Efficiency
MicroBT WhatsMiner M70S+12.5 J/TH — lower electricity cost per terahash.
Foire aux questions
MicroBT Whatsminer M21 vs MicroBT WhatsMiner M70S+: which one earns more per day?
At the current BTC price and a $0.10/kWh electricity rate, the MicroBT WhatsMiner M70S+ is more profitable at $-0.28/day compared to $-3.57/day for the MicroBT Whatsminer M21. Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
MicroBT Whatsminer M21 vs MicroBT WhatsMiner M70S+: which runs at a lower noise level?
The MicroBT WhatsMiner M70S+ is quieter at 75 dB compared to the MicroBT Whatsminer M21 at 0 dB. For home mining, lower noise levels make a significant difference in livability.
Which is better for home mining, the MicroBT Whatsminer M21 or MicroBT WhatsMiner M70S+?
The MicroBT Whatsminer M21 scores 11/100 on our Home Mining Score (vs 8/100 for the MicroBT WhatsMiner M70S+). This composite score factors in noise, power requirements, heat output, size, and setup ease — all critical for residential mining.
How far apart are the MicroBT Whatsminer M21 and MicroBT WhatsMiner M70S+ on J/TH?
The MicroBT Whatsminer M21 runs at 60.0 J/TH while the MicroBT WhatsMiner M70S+ runs at 12.5 J/TH — a difference of 47.5 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 79% better efficacité (60.0 vs 12.5 J/TH).