Bitdeer SealMiner A3 Pro Air vs MicroBT WhatsMiner M73
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Bitdeer SealMiner A3 Pro Air | Specification | MicroBT WhatsMiner M73 |
|---|---|---|
| 290.0 TH/s | Hashrate | 512.0 TH/s |
| 3,625 W | Power Consumption | 7,424 W |
| 12.5 J/TH | Efficiency | 14.5 J/TH |
| 75 dB | Noise Level | 75 dB |
| 15.5 kg | Weight | 27.5 kg |
| 12,369 BTU/hr | BTU Output | 25,331 BTU/hr |
| 30/100 | Home Mining Score | 30/100 |
| — | Release Year | — |
| SHA-256 | Algorithm | SHA-256 |
| Bitdeer | Manufacturer | MicroBT |
Profitability Comparison
Bitdeer SealMiner A3 Pro Air
MicroBT WhatsMiner M73
Based on BTC price of $79,088 and current network difficulty as of May 15, 2026. Actual results vary.
Verdict
Based on our multi-factor analysis, the Bitdeer SealMiner A3 Pro Air wins on 2 of 3 factors (efficiency, power consumption). The standout gap is 51% better power draw (3,625 vs 7,424 W) in the Bitdeer SealMiner A3 Pro Air's favour. The MicroBT WhatsMiner M73 claws back ground on hashrate. Cross-check the spec deltas and ROI table above against your own electricity rate before deciding.
Spec Deltas
The Bitdeer SealMiner A3 Pro Air and MicroBT WhatsMiner M73 diverge on the metrics below — each gap expressed as a real percentage, not a vague "better":
- MicroBT WhatsMiner M73 77% more hashrate (290 vs 512 TH/s)
- Bitdeer SealMiner A3 Pro Air 51% better power draw (3,625 vs 7,424 W)
- Bitdeer SealMiner A3 Pro Air 14% better efficiency (12.5 vs 14.5 J/TH)
- Bitdeer SealMiner A3 Pro Air 44% better weight (15.5 vs 27.5 kg)
- MicroBT WhatsMiner M73 105% more heat output (12,369 vs 25,331 BTU/hr)
Cost & ROI Over Time
A miner pays for itself in profit, not specs. These projections track upfront cost against one, two and three years of net earnings at $0.10/kWh.
| Bitdeer SealMiner A3 Pro Air | Metric | MicroBT WhatsMiner M73 |
|---|---|---|
| $4,895 | Upfront cost (MSRP) | — |
| $1.85 | Daily net profit | $0.82 |
| -$4,218 | Net after 1 year | +$298 |
| -$3,541 | Net after 2 years | +$596 |
| -$2,864 | Net after 3 years | +$894 |
| Takes ~7.2 years to pay back at current rates | Payback period | — |
Projections assume continuous operation, a flat $0.10/kWh rate, and no hardware degradation, pool fees, or BTC price change. Real-world ROI varies.
Best For...
Best for Profitability
Bitdeer SealMiner A3 Pro Air$1.04/day higher profit at current rates.
Best for Home Mining
TieBoth miners are equally suitable for home use.
Best for Efficiency
Bitdeer SealMiner A3 Pro Air12.5 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Which makes more money, the Bitdeer SealMiner A3 Pro Air or the MicroBT WhatsMiner M73?
At the current BTC price and a $0.10/kWh electricity rate, the Bitdeer SealMiner A3 Pro Air is more profitable at $1.85/day compared to $0.82/day for the MicroBT WhatsMiner M73. Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Bitdeer SealMiner A3 Pro Air vs MicroBT WhatsMiner M73: which runs at a lower noise level?
Both miners have similar noise levels. Check the specs table above for exact decibel readings.
For mining at home, should I pick the Bitdeer SealMiner A3 Pro Air or the MicroBT WhatsMiner M73?
Both miners score similarly on our Home Mining Score. Consider your specific constraints (noise tolerance, available power, heat needs) to decide.
What is the efficiency difference between Bitdeer SealMiner A3 Pro Air and MicroBT WhatsMiner M73?
The Bitdeer SealMiner A3 Pro Air runs at 12.5 J/TH while the MicroBT WhatsMiner M73 runs at 14.5 J/TH — a difference of 2.0 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 14% better efficiency (12.5 vs 14.5 J/TH).
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