Antminer S21 vs WhatsMiner M60S: both are top-tier ASICs but differ in efficiency, cost per TH/s, and ecosystem. Here's the 2026 comparison for commercial miners.
The Antminer S21 from Bitmain and the WhatsMiner M60S from MicroBT are the two leading generation Bitcoin mining ASICs competing for mining deployments in 2026. Both are highly efficient — but they differ in important ways that affect which is right for your operation.
Here's the head-to-head comparison.
| Feature | Antminer S21 | WhatsMiner M60S |
|---|---|---|
| Hashrate | 200 TH/s | 186 TH/s |
| Power consumption | 3500W | 3441W |
| Efficiency | 17.5 J/TH | 18.5 J/TH |
| Noise level | 75 dB | 75 dB |
| Weight | 16.5 kg | 15.1 kg |
| Dimensions | 400 x 195 x 290 mm | 390 x 192 x 292 mm |
| Operating temp | 0-40°C | 5-45°C |
| Cooling | Liquid-cooled (S21 Hydro variant) / Air | Air |
| Price (approx) | $2,500-3,500 | $2,000-3,000 |
| Warranty | 6 months | 6 months |
At 17.5 J/TH, the Antminer S21 is slightly more efficient than the WhatsMiner M60S at 18.5 J/TH. This 1 J/TH difference translates to real savings at scale.
At $0.06/kWh electricity (a common mining rate):
The M60S actually uses slightly less power (smaller power draw), but the S21's higher hashrate produces more Bitcoin. Net result: the S21 generates slightly more revenue per dollar of electricity at equal electricity costs.
The Antminer S21 delivers 200 TH/s versus the M60S's 186 TH/s — a 7.5% hashrate advantage. At equal efficiency, more hashrate means more Bitcoin mined.
However, hashrate alone doesn't tell the story — you're paying for hashrate, so cost per TH/s matters too.
| Miner | Price | TH/s | $/TH/s |
|---|---|---|---|
| Antminer S21 | ~$3,000 | 200 | $15/TH/s |
| WhatsMiner M60S | ~$2,500 | 186 | $13.4/TH/s |
The M60S offers a lower cost per TH/s — meaning you can buy more hashrate for the same capital with WhatsMiner. If capital deployment efficiency is your primary concern, M60S has the edge.
This is where many mining operations make their decision:
Bitmain (Antminer): Dominant market share for over a decade. Large support network, widely stocked repair parts, well-documented firmware. Many mining hosting facilities have staff specifically trained on Antminer hardware.
MicroBT (WhatsMiner): Risen to challenge Bitmain significantly since 2019. WhatsMiner reliability has improved substantially — many large mining operations now run both brands. Support network is smaller than Bitmain but growing.
For new miners without existing infrastructure, Antminer's larger ecosystem reduces risk. For experienced operators comfortable with both, WhatsMiner's competitive pricing is worth considering.
Antminer S21: Available in air-cooled and hydro-cooled (S21 Hydro) variants. The Hydro version offers significantly lower noise and the option for heat recovery — useful for home mining or commercial installations that want to use waste heat.
WhatsMiner M60S: Air-cooled. MicroBT offers immersion-cooled versions (M60S Immersion) but the standard model is air only.
If you're exploring innovative cooling — heat recovery, immersion, hydro — Bitmain's Hydro line has more mature commercial options.
Both machines at 75 dB are too loud for most homes without soundproofing. For context, 75 dB is similar to a vacuum cleaner running continuously.
If you're home mining, consider:
See our Best Home Bitcoin Miners Guide for residential options.
At current network difficulty and $0.07/kWh electricity:
Use a real-time Bitcoin mining calculator to check current profitability — numbers change with Bitcoin price, network difficulty, and electricity rates.
Choose the Antminer S21 if:
Choose the WhatsMiner M60S if:
For most new mining operations deploying commercial-scale hardware in 2026, either machine is a solid choice. The 1 J/TH efficiency difference and 7.5% hashrate difference are meaningful at scale but not decisive for small operations.
The Antminer S21 is slightly more profitable per unit due to higher hashrate, but the WhatsMiner M60S offers lower cost per TH/s. Profitability depends on Bitcoin price, electricity cost, and hardware acquisition cost.
At current network difficulty and Bitcoin price around $80,000-100,000, both machines are profitable below $0.08/kWh. Below $0.05/kWh, profitability is strong. Above $0.10/kWh, both machines struggle.
ASICs typically last 3-5 years before newer, more efficient models make them uncompetitive. Physical lifespan is longer — the machines often keep working — but economic lifespan depends on newer competition.
Technically yes, but 75 dB noise and 3,500W power draw make residential use impractical without significant soundproofing and electrical work. Consider a mining hosting facility instead.
See our full Bitcoin Mining Directory for all ASIC reviews. See also: Antminer S21 Review and WhatsMiner M60S Review.
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