Bitdeer SealMiner A3 Hydro

Hashrate 500.0 TH/s Power 6,750 W Efficiency 13.5 J/TH

MicroBT WhatsMiner M78S

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

Bitdeer SealMiner A3 Hydro vs MicroBT WhatsMiner M78S

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

Specifications Comparison

Bitdeer SealMiner A3 Hydro	Specification	MicroBT WhatsMiner M78S
500.0 TH/s	Hashrate	498.0 TH/s
6,750 W	Power Consumption	6,723 W
13.5 J/TH	Efficiency	13.5 J/TH
50 dB	Noise Level	75 dB
20.5 kg	Weight	18.0 kg
23,031 BTU/hr	BTU Output	22,939 BTU/hr
44/100	Home Mining Score	30/100
—	Release Year	—
SHA-256	Algorithm	SHA-256
Bitdeer	Manufacturer	MicroBT

Profitability Comparison

Electricity Rate:

$/kWh

Bitdeer SealMiner A3 Hydro

Daily Revenue 0.00023009 BTC $18.18

Daily Electricity -$16.20

Daily Profit $1.98

Monthly $59.54

Yearly $724.38

MicroBT WhatsMiner M78S

Daily Revenue 0.00022917 BTC $18.11

Daily Electricity -$16.14

Daily Profit $1.98

Monthly $59.30

Yearly $721.48

Based on BTC price of $79,032 and current network difficulty as of May 15, 2026. Actual results vary.

Verdict

Run the numbers across every spec and the Bitdeer SealMiner A3 Hydro edges it: 3 of 4 factors go its way (hashrate, home mining score, noise level). Where it pulls away hardest is 33% better noise (50.0 vs 75.0 dB). The MicroBT WhatsMiner M78S holds the edge in power consumption. The right pick still depends on your power cost and noise tolerance — the breakdowns above make that call concrete.

Winner: Bitdeer SealMiner A3 Hydro — wins on 3 of 4 factors

Spec Deltas

Here is every spec where the Bitdeer SealMiner A3 Hydro and MicroBT WhatsMiner M78S actually differ, with the gap quantified:

Bitdeer SealMiner A3 Hydro 33% better noise (50.0 vs 75.0 dB)
MicroBT WhatsMiner M78S 12% better weight (20.5 vs 18.0 kg)
Bitdeer SealMiner A3 Hydro 47% more home mining score (44.0 vs 30.0)

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 Hydro	Metric	MicroBT WhatsMiner M78S
$6,650	Upfront cost (MSRP)	—
$1.98	Daily net profit	$1.98
-$5,926	Net after 1 year	+$721
-$5,201	Net after 2 years	+$1,443
-$4,477	Net after 3 years	+$2,164
Takes ~9.2 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 Hydro

$0.01/day higher profit at current rates.

Best for Home Mining

Bitdeer SealMiner A3 Hydro

Score: 44/100. 50 dB noise level.

Best for Efficiency

Tie

Both miners have comparable efficiency.

Frequently Asked Questions

Which makes more money, the Bitdeer SealMiner A3 Hydro or the MicroBT WhatsMiner M78S?

At the current BTC price and a $0.10/kWh electricity rate, the Bitdeer SealMiner A3 Hydro is more profitable at $1.98/day compared to $1.98/day for the MicroBT WhatsMiner M78S. Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.

Is the Bitdeer SealMiner A3 Hydro or the MicroBT WhatsMiner M78S better for noise-sensitive spaces?

The Bitdeer SealMiner A3 Hydro is quieter at 50 dB compared to the MicroBT WhatsMiner M78S at 75 dB. For home mining, lower noise levels make a significant difference in livability.

Bitdeer SealMiner A3 Hydro vs MicroBT WhatsMiner M78S: which fits a residential setup better?

The Bitdeer SealMiner A3 Hydro scores 44/100 on our Home Mining Score (vs 30/100 for the MicroBT WhatsMiner M78S). This composite score factors in noise, power requirements, heat output, size, and setup ease — all critical for residential mining.

How far apart are the Bitdeer SealMiner A3 Hydro and MicroBT WhatsMiner M78S on J/TH?

The Bitdeer SealMiner A3 Hydro runs at 13.5 J/TH while the MicroBT WhatsMiner M78S runs at 13.5 J/TH — a difference of 0.0 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs.

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