Bitdeer SealMiner A3 Pro Air

Taux de hachage 290.0 TH/s Puissance 3,625 W Efficiency 12.5 J/TH

MicroBT WhatsMiner M78S

Taux de hachage 498.0 TH/s Puissance 6,723 W Efficiency 13.5 J/TH

Bitdeer SealMiner A3 Pro Air vs MicroBT WhatsMiner M78S

Side-by-side specs, profitability, and home mining comparison.

Specifications Comparison

Bitdeer SealMiner A3 Pro Air	Specification	MicroBT WhatsMiner M78S
290.0 TH/s	Taux de hachage	498.0 TH/s
3,625 W	Consommation électrique	6,723 W
12.5 J/TH	Efficiency	13.5 J/TH
75 dB	Niveau de bruit	75 dB
15.5 kg	Weight	18.0 kg
12,369 BTU/hr	BTU Output	22,939 BTU/hr
30/100	Home Mining Score	30/100
—	Release Year	—
SHA-256	Algorithme	SHA-256
Bitdeer	Manufacturer	MicroBT

Profitability Comparison

Electricity Rate:

$/kWh

Bitdeer SealMiner A3 Pro Air

Daily Revenue 0.00013345 BTC $10.43

Daily Electricity -$8.70

Daily Profit $1.73

Monthly $51.96

Yearly $632.24

MicroBT WhatsMiner M78S

Daily Revenue 0.00022917 BTC $17.91

Daily Electricity -$16.14

Daily Profit $1.78

Monthly $53.38

Yearly $649.46

Based on BTC price of $78,171 and current network difficulty as of May 17, 2026. Actual results vary.

Verdict

Run the numbers across every spec and the Bitdeer SealMiner A3 Pro Air edges it: 2 of 3 factors go its way (efficacité, consommation électrique). Its biggest concrete edge: 46% better power draw (3,625 vs 6,723 W). The MicroBT WhatsMiner M78S holds the edge in hashrate. The right pick still depends on your power cost and noise tolerance — the breakdowns above make that call concrete.

Winner: Bitdeer SealMiner A3 Pro Air — l'emporte sur 2 des 3 facteurs

Spec Deltas

Stripped to the numbers, this is how far apart the Bitdeer SealMiner A3 Pro Air and MicroBT WhatsMiner M78S sit on each measurable spec:

MicroBT WhatsMiner M78S 72% more hashrate (290 vs 498 TH/s)
Bitdeer SealMiner A3 Pro Air 46% better power draw (3,625 vs 6,723 W)
Bitdeer SealMiner A3 Pro Air 7% better efficacité (12.5 vs 13.5 J/TH)
Bitdeer SealMiner A3 Pro Air 14% better weight (15.5 vs 18.0 kg)
MicroBT WhatsMiner M78S 85% more heat output (12,369 vs 22,939 BTU/hr)

Cost & ROI Over Time

Hardware cost is only half the story — here is how each miner's upfront price plays out against cumulative profit at a $0.10/kWh rate.

Bitdeer SealMiner A3 Pro Air	Metric	MicroBT WhatsMiner M78S
$4,895	Upfront cost (MSRP)	—
$1.73	Daily net profit	$1.78
-$4,263	Net after 1 year	+$649
-$3,631	Net after 2 years	+$1,299
-$2,998	Net after 3 years	+$1,948
Takes ~7.7 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

MicroBT WhatsMiner M78S

$0.05/day higher profit at current rates.

Best for Home Mining

Tie

Both miners are equally suitable for home use.

Best for Efficiency

Bitdeer SealMiner A3 Pro Air

12.5 J/TH — lower electricity cost per terahash.

Frequently Asked Questions

Is the Bitdeer SealMiner A3 Pro Air or MicroBT WhatsMiner M78S more profitable?

At the current BTC price and a $0.10/kWh electricity rate, the MicroBT WhatsMiner M78S is more profitable at $1.78/day compared to $1.73/day for the Bitdeer SealMiner A3 Pro Air. 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 M78S: which runs at a lower noise level?

Both miners have similar noise levels. Check the specs table above for exact decibel readings.

Which is better for home mining, the Bitdeer SealMiner A3 Pro Air or MicroBT WhatsMiner M78S?

Both miners score similarly on our Home Mining Score. Consider your specific constraints (noise tolerance, available power, heat needs) to decide.

Bitdeer SealMiner A3 Pro Air vs MicroBT WhatsMiner M78S: how much does the efficiency gap matter?

The Bitdeer SealMiner A3 Pro Air runs at 12.5 J/TH while the MicroBT WhatsMiner M78S runs at 13.5 J/TH — a difference of 1.0 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 7% better efficacité (12.5 vs 13.5 J/TH).

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