Bitmain vs MicroBT: Which ASIC Miner Brand Is Better in 2026?

⚠️ お断り: マイニングの収益性は、電気料金、仮想通貨価格、ネットワーク難易度によって変動します。すべての数値は、2026年6月26日時点の状況を反映しています（BTC $66,328, ZEC $524.85, BTC network hashrate 979.2 EH/s, difficulty +6.96% next epoch). Past performance does not indicate future results. Conduct your own due diligence before purchasing mining equipment.

Introduction: Does Brand Matter When Buying an ASIC Miner?

When shopping for ASIC mining hardware, buyers inevitably face the Bitmain vs MicroBT question. Both companies have dominated the market for years — Bitmain through its Antminer lineup, MicroBT through Whatsminer — and both produce machines that appear comparable on paper. But in mid-2026, the data tells a more nuanced story: the brand is almost secondary to the coin you intend to mine.

This analysis compares Bitmain and MicroBT across their flagship products currently available, using real-time profitability data. The goal is to help buyers understand where each brand excels, what the ROI looks like across different electricity costs, and which choice makes more financial sense under current market conditions.

Brand Overview: Bitmain Antminer vs MicroBT Whatsminer

Bitmain (Antminer)

Founded in 2013, Bitmain is the world’s largest ASIC manufacturer by units shipped. Its Antminer product line covers Bitcoin (SHA-256), Litecoin/Dogecoin (Scrypt), Zcash (Equihash), Ethereum Classic (Etchash), and several other algorithms. The company’s key strength is breadth: if you’re mining any major proof-of-work coin, Bitmain likely has a dedicated machine for it.

Current flagship Bitcoin models include the S21 series (air-cooled) and S23 Hydro series (liquid-cooled). For alt-coin mining, the Antminer Z15 Pro and Z15 — both Equihash machines targeting Zcash — rank among the most profitable ASICs available in 2026 by net daily income and payback period.

MicroBT（Whatsminer）

MicroBT entered the market in 2016 and has positioned itself as a credible alternative to Bitmain, particularly for high-density Bitcoin mining. The Whatsminer M-series machines are built around SHA-256 and are available in air-cooled and hydro-cooled variants. MicroBT’s range is narrower than Bitmain’s: it focuses almost exclusively on Bitcoin and does not offer hardware for alt-coin algorithms.

Current available models include the M79S Hydro (1.35 PH/s) and the M7DS Hydro (680 TH/s). Both are enterprise-grade hydro-cooled units designed for large-scale operations requiring dedicated liquid cooling infrastructure.

Bitcoin Mining: Antminer S23 Series vs Whatsminer M79S

For miners targeting Bitcoin, the most relevant comparison is Bitmain’s S23 Hyd 3U against MicroBT’s M79S Hydro. Both are high-throughput hydro-cooled machines aimed at institutional deployments.

Specifications Side by Side

Note: Gross daily revenue at BTC $66,328 and June 26, 2026 network difficulty. Both units are hydro-cooled and require appropriate facility infrastructure. See the BTマイナーの収益性計算ツール お客様固有のシナリオをモデル化します。

さまざまな電気料金における投資収益率

Note: Figures based on BTC price and network conditions as of June 26, 2026. Both machines require hydro cooling infrastructure, which adds to total cost of ownership. ROI periods assume stable BTC price and difficulty — real-world outcomes will vary.

Several findings stand out. The M79S Hydro has a lower acquisition cost ($12,100 vs $29,800) and higher raw hashrate, but its 20,000W power draw creates an acute sensitivity to electricity costs. At $0.10/kWh — a common rate in many markets — the M79S operates at a loss. The S23 Hyd 3U remains profitable up to approximately $0.148/kWh, owing to its substantially better energy efficiency of 9.5 J/TH versus 14.8 J/TH.

Neither machine offers a short payback period under current BTC conditions at $0.07/kWh: 47.8 months and 33.8 months respectively. The M79S Hydro payback at $0.04/kWh (15.2 months) is more attractive, but this assumes access to very low-cost power that is not available to most retail or small commercial buyers.

Beyond Bitcoin: Where Bitmain Has No Competitor

The most significant difference between Bitmain and MicroBT in 2026 is not efficiency or hashrate — it is algorithm coverage. MicroBT produces only SHA-256 machines. Bitmain manufactures hardware for multiple algorithms. Whether this breadth translates into a meaningful performance advantage depends on which coin has the better profitability profile at any given time — currently that happens to be ZEC, but this can change.

その アントマイナー Z15 プロ (Equihash, Zcash) is the top-performing machine by net daily profit and payback period across the entire current catalog — not just within the Bitmain lineup, but across all brands and algorithms. Its smaller sibling, the アントマイナーZ15, holds the second position by the same metric.

Antminer Z15 Pro ROI Across Electricity Rates

Note: Z15 Pro specs: 840 KSol/s, 2,780W, price $4,600. Gross daily revenue $36.56 at ZEC $524.85 on June 26, 2026. ZEC is a smaller-cap asset with higher price volatility than BTC; a significant ZEC price decline would extend ROI accordingly. Always stress-test multiple price scenarios before purchasing.

The Z15 Pro’s profile differs structurally from any BTC miner available today. It draws only 2,780W — compared to 11,020W–20,000W for the Bitcoin hydro machines above — so electricity cost has a much smaller absolute impact on daily profit. At $0.15/kWh, the Z15 Pro still generates $26.55/day in net profit, while the M79S Hydro and S23 Hyd 3U are either at a loss or deeply unprofitable by that point.

This is not a Bitmain efficiency advantage in the traditional sense: MicroBT simply does not offer an Equihash product. Under June 2026 market conditions — ZEC at $524.85 and BTC at $66,328 — Bitmain’s Equihash hardware shows a shorter payback period and higher net profit per day than Bitcoin mining hardware from either brand at electricity rates above $0.07/kWh. This relationship could change if ZEC price falls significantly or BTC price rises sharply relative to ZEC.

Efficiency Comparison Within Bitcoin Mining

For buyers committed to Bitcoin mining specifically, efficiency (J/TH) is the key competitive metric. Lower is better.

以内 BTC mining segment, Bitmain’s current available models are more power-efficient than the Whatsminer units currently on offer. The S23 Hyd 3U at 9.5 J/TH leads the comparison. This efficiency gap is the primary reason the S23 Hyd 3U tolerates higher electricity rates before turning unprofitable.

However, the Whatsminer M79S Hydro’s lower acquisition price ($12,100) means it can offer a faster payback at very low electricity rates (below $0.07/kWh), even with inferior efficiency. Buyers at co-located facilities with confirmed sub-$0.05/kWh rates may find the MicroBT option worth evaluating on a total-cost-of-ownership basis.

Which Brand Should You Buy? A Framework for 2026

Choose Bitmain if:

• You are open to mining alt-coins (ZEC, LTC/DOGE, ETC) and want access to the fastest-payback hardware available
• Your electricity rate is $0.07/kWh or higher — Bitmain’s alt-coin hardware remains profitable at rates where BTC miners from both brands struggle
• You want the most energy-efficient BTC miners in the current market (9.5–10.0 J/TH for top Antminer models)
• You prefer manufacturer diversity across coin algorithms for future flexibility

Consider MicroBT if:

• You have confirmed access to electricity below $0.07/kWh through an industrial facility or co-location agreement
• You are mining Bitcoin exclusively and acquisition cost per PH/s is the primary constraint ($12,100 for 1.35 PH/s via M79S Hydro is a low price-per-hash)
• You are building a large-scale hashrate operation where raw throughput density matters more than energy efficiency per unit

ボトムライン

In 2026, the most important variable in ASIC selection is not the manufacturer — it is the mining algorithm. For buyers with electricity costs above $0.07/kWh assessing ROI on capital deployed, MicroBT does not currently offer Equihash hardware, leaving Bitmain as the only option in that segment. For Bitcoin-only operations with access to very cheap power, MicroBT’s pricing can be attractive, though the high power draw of the M79S Hydro carries meaningful downside risk if power rates change or BTC 価格が下落します。

Key Risks to Factor In

• コイン価格の変動性： ZEC’s higher short-term ROI is contingent on current prices. ZEC is a smaller-cap asset with history of larger price swings than BTC. A 40–50% ZEC price drop would significantly extend the Z15 Pro’s payback period.
• ネットワークの難しさ: As more Equihash miners come online, ZEC mining difficulty may increase, reducing per-miner revenue over time.
• BTC difficulty trend: BTC network hashrate hit 979.2 EH/s in late June 2026, with difficulty expected to increase ~6.96% next epoch — further compressing BTC miner margins unless BTC price rises proportionally.
• Hardware lifecycle: ASIC miners typically have a commercially useful life of 3–5 years. Hardware purchased today at elevated prices may face competition from more efficient next-generation models.
• インフラストラクチャのコスト: Hydro-cooled units from both brands require dedicated cooling infrastructure that adds to total capital expenditure beyond the purchase price.

BTマイナーの収益性計算ツール to model your specific electricity rate and hardware choice against current market conditions before making a purchase decision.

結論

The Bitmain vs MicroBT debate is a real one, but it resolves differently depending on which coin you intend to mine. Both companies produce commercially-deployed hardware that runs reliably at scale. Where they differ materially is in algorithm coverage and, within Bitcoin, in power efficiency — and those differences have significant financial consequences at current prices and difficulty levels.

For buyers in 2026, the practical starting point is the coin, not the brand. If the answer is Bitcoin with very low power costs, evaluate both brands on a total-cost-of-ownership basis. If you want the best available ROI at moderate electricity rates and are not tied to any specific coin, Bitmain’s alt-coin catalog — and the アントマイナー Z15 プロ in particular — is where the current data points most clearly.