Bitdeer SealMiner A2

Hashrate 226.0 TH/s Power 3,730 W Efficiency 16.5 J/TH

MicroBT WhatsMiner M78S

Hashrate 498.0 TH/s Power 6,723 W Efficiency 13.5 J/TH

Bitdeer SealMiner A2 vs MicroBT WhatsMiner M78S

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

Specifications Comparison

Bitdeer SealMiner A2	Specification	MicroBT WhatsMiner M78S
226.0 TH/s	Hashrate	498.0 TH/s
3,730 W	Power Consumption	6,723 W
16.5 J/TH	Efficiency	13.5 J/TH
75 dB	Noise Level	75 dB
15.5 kg	Weight	18.0 kg
12,727 BTU/hr	BTU Output	22,939 BTU/hr
30/100	Home Mining Score	30/100
—	Release Year	—
SHA-256	Algorithm	SHA-256
Bitdeer	Manufacturer	MicroBT

Profitability Comparison

Electricity Rate:

$/kWh

Bitdeer SealMiner A2

Daily Revenue 0.00010400 BTC $8.23

Daily Electricity -$8.95

Daily Profit -$0.72

Monthly -$21.63

Yearly -$263.17

MicroBT WhatsMiner M78S

Daily Revenue 0.00022917 BTC $18.14

Daily Electricity -$16.14

Daily Profit $2.00

Monthly $60.06

Yearly $730.77

Based on BTC price of $79,143 and current network difficulty as of May 15, 2026. Actual results vary.

Verdict

Our scoring model gives the nod to the MicroBT WhatsMiner M78S, which leads on 2 of 3 weighted factors (efficiency, hashrate). The standout gap is 120% more hashrate (226 vs 498 TH/s) in the MicroBT WhatsMiner M78S's favour. That said, the Bitdeer SealMiner A2 isn't beaten everywhere — it still wins power consumption. The right pick still depends on your power cost and noise tolerance — the breakdowns above make that call concrete.

Winner: MicroBT WhatsMiner M78S — wins on 2 of 3 factors

Spec Deltas

Here is every spec where the Bitdeer SealMiner A2 and MicroBT WhatsMiner M78S actually differ, with the gap quantified:

MicroBT WhatsMiner M78S 120% more hashrate (226 vs 498 TH/s)
Bitdeer SealMiner A2 45% better power draw (3,730 vs 6,723 W)
MicroBT WhatsMiner M78S 18% better efficiency (16.5 vs 13.5 J/TH)
Bitdeer SealMiner A2 14% better weight (15.5 vs 18.0 kg)
MicroBT WhatsMiner M78S 80% more heat output (12,727 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 A2	Metric	MicroBT WhatsMiner M78S
$2,760	Upfront cost (MSRP)	—
-$0.72	Daily net profit	$2.00
-$3,023	Net after 1 year	+$731
-$3,286	Net after 2 years	+$1,462
-$3,550	Net after 3 years	+$2,192
Does not pay back at current rates (negative daily profit)	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

$2.72/day higher profit at current rates.

Best for Home Mining

Tie

Both miners are equally suitable for home use.

Best for Efficiency

MicroBT WhatsMiner M78S

13.5 J/TH — lower electricity cost per terahash.

Frequently Asked Questions

Which makes more money, the Bitdeer SealMiner A2 or the MicroBT WhatsMiner M78S?

At the current BTC price and a $0.10/kWh electricity rate, the MicroBT WhatsMiner M78S is more profitable at $2.00/day compared to $-0.72/day for the Bitdeer SealMiner A2. Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.

Is the Bitdeer SealMiner A2 or the MicroBT WhatsMiner M78S better for noise-sensitive spaces?

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

Bitdeer SealMiner A2 vs MicroBT WhatsMiner M78S: which fits a residential setup better?

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

How far apart are the Bitdeer SealMiner A2 and MicroBT WhatsMiner M78S on J/TH?

The Bitdeer SealMiner A2 runs at 16.5 J/TH while the MicroBT WhatsMiner M78S runs at 13.5 J/TH — a difference of 3.0 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 18% better efficiency (16.5 vs 13.5 J/TH).

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