Michal Beno10 November 2026 · Brand Guide
Short answer
Almost every Bitcoin miner sold today comes from four brands: Antminer (made by Bitmain), Whatsminer (MicroBT), Avalon (Canaan) and Sealminer (Bitdeer). The brand matters less than the model: compare efficiency in J/TH, cooling type and hashrate, then match the model to where it will run.
4
major Bitcoin miner brands
8.9 J/TH
most efficient model in this comparison
1,048 TH/s
largest hashrate in this comparison
1Who makes the Bitcoin miners
A Bitcoin miner is a specialised computer, called an ASIC, that does one job: the SHA-256 calculations that add new blocks to Bitcoin. Building the chips inside takes years of design work, so only a few companies make them at scale. Each sells under its own brand name.
For a buyer, the maker matters in three ways: the chip design sets efficiency, the build quality sets how long the unit lasts, and the support network sets how fast a fault gets fixed. Everything else, including how much Bitcoin each terahash earns, is the same for every brand. That is why smart buyers compare models line by line instead of picking a favourite logo.
Glossary
| ASIC | Application-specific integrated circuit: a chip built for one task only. |
| TH/s | Terahashes per second, one trillion guesses each second. 1,000 TH/s = 1 PH/s. |
| J/TH | Joules per terahash: how much energy each unit of work costs. Lower is better. |
| Hyd | Hydro: a water-cooled version that needs a liquid cooling loop. |
2The four brands in plain words
| 1 |
Antminer (Bitmain) The best-known name and the widest range, from air-cooled units like the Antminer S21 to hydro models like the Antminer S23 XP Hyd at 8.9 J/TH, the most efficient model in this comparison. |
| 2 |
Whatsminer (MicroBT) Known for large, sturdy units. The Whatsminer M79S packs 1,048 TH/s into one hydro-cooled box, so one unit does the work of five or six older air models. |
| 3 |
Avalon (Canaan) One of the oldest ASIC makers. The Avalon A15 Pro lists 221 TH/s. Canaan also makes small home units, but the A15 Pro is a full-size Bitcoin miner. |
| 4 |
Sealminer (Bitdeer) The newest of the four. The Sealminer A2 Pro Air runs on air at 14.9 J/TH, and the Sealminer A4 Ultra Hyd lists 886 TH/s on hydro. |
How much energy does each flagship need per terahash?
Longer bar = more electricity for the same work
Antminer S21 (air)
| 17.5 J/TH |
Antminer S21+ Hyd
| 15 J/TH |
Sealminer A2 Pro Air
| 14.9 J/TH |
Whatsminer M79S
| 13.8 J/TH |
Antminer S23 Hyd
| 9.5 J/TH |
Antminer S23 XP Hyd
| 8.9 J/TH |
3Cooling: air, hydro or immersion
Every watt a Bitcoin miner draws becomes heat. How that heat leaves the box shapes where the unit can run.
- Air cooling: fans push air across heatsinks. Simple and flexible, but loud, and it needs clean, cool air. Examples: Antminer S21, Sealminer A2 Pro Air.
- Hydro cooling: water flows through plates on the chips and carries heat to a cooler outside. Quieter, denser and usually more efficient. Examples: Antminer S23 Hyd, Whatsminer M79S, Sealminer A4 Ultra Hyd.
- Immersion: air-cooled units sit in a tank of special non-conductive fluid. Common in large facilities, rare at home.
Hydro is where most of the recent efficiency gains have come from. Water carries heat away far better than air, so chips can run cooler and closer together. That lets makers fit more hashrate into one box and push J/TH lower. The trade-off is infrastructure: a hydro unit is only as good as the cooling loop it is connected to.
Good to know
A hydro Bitcoin miner cannot run on a shelf with a fan. It needs pumps, a heat exchanger and plumbing, which is why most hydro models live in professional hosting sites.
4Comparing flagships with real numbers
Power cost per terahash per day
cost per TH per day = J/TH x 24 / 1000 x price per kWh
Revenue per terahash is the same whichever brand made the chip. Efficiency decides how much of it the power bill takes.
Worked example
Worked example: 1,000 TH/s of capacity at 4.5 cents/kWh
| Sealminer A2 Pro Air: 14.9 x 24 | 357.6 kWh per day, about $16.09 |
| Antminer S23 XP Hyd: 8.9 x 24 | 213.6 kWh per day, about $9.61 |
| Daily difference | about $6.48 |
| Yearly difference: 6.48 x 365 | about $2,365 |
For the same 1,000 TH/s of work, the more efficient model saves about $2,365 a year in power at this rate. Rates as listed on 30 October 2026; check the hosting page for current rates.
Worked example
Worked example: one Whatsminer M79S for a day
| Hashrate | 1,048 TH/s |
| Power use: 14,502 x 24 / 1000 | 348.05 kWh per day |
| Power cost at 4.5 cents/kWh | about $15.66 |
| Estimated revenue: 1,048 x about 3.5 cents | about $36.68 |
| Left after power (before pool fee) | about $21.02 |
A big hashrate means a big power bill too, so cheap power matters as much as the brand. Revenue is an estimate from public network data on 30 October 2026 and moves daily.
How much work does one unit do?
Longer bar = more hashrate in a single Bitcoin miner
Whatsminer M79S
| 1,048 TH/s |
Sealminer A4 Ultra Hyd
| 886 TH/s |
Antminer S23 XP Hyd
| 600 TH/s |
Whatsminer M63
| 382 TH/s |
Avalon A15 Pro
| 221 TH/s |
Try it on OneMiners
Turn this guide into real numbers in a few clicks.
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In the catalogue Antminer S23 XP HYD
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In the catalogue Whatsminer M79S
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In the catalogue Sealminer A2 PRO AIR
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5How to choose between brands
| 1 |
Start with efficiency Sort by J/TH first. It decides how much revenue survives the power bill, now and after the next halving. |
| 2 |
Match the cooling to the site Air models suit flexible spaces. Hydro models need a facility with liquid cooling. |
| 3 |
Check hashrate per unit One large unit is simpler to manage than six small ones, but a single fault takes more hashrate offline. |
| 4 |
Look at support and warranty Ask who repairs the unit and how long cover lasts. Brand reputation is no substitute for a written warranty. |
MYTH: One brand is always best.
FACT: Each brand has strong and weak models. Compare models, not logos.
MYTH: More TH/s always wins.
FACT: A huge hashrate with poor J/TH can leave less after power than a smaller, efficient unit.
Compare locations on the hosting centers page, run any model through the profitability calculator, and read about cooling options.
The OneMiners view
OneMiners stocks Antminer, Whatsminer, Avalon and Sealminer models, so a buyer can pick on efficiency rather than on what a single seller carries. Air and hydro units are hosted across 17 live locations with 98%+ average uptime, power from 3.6 cents/kWh on the 7-year prepaid tier in Nigeria (rates as listed on 30 October 2026; check the hosting page for current rates) and a 7-year warranty for defects.
6Frequently asked questions
Which Bitcoin miner brand is the most efficient?
In this comparison, the Antminer S23 XP Hyd leads at 8.9 J/TH. Efficiency depends on the model, not the brand.
Is Whatsminer better than Antminer?
Neither wins across the board. Compare the exact models on J/TH, cooling and hashrate.
Can I run a hydro Bitcoin miner at home?
Only with a liquid cooling loop, pumps and a heat exchanger. Most owners host hydro models in a professional facility.
Does the brand change how much a Bitcoin miner earns?
No. Every terahash earns the same share of network rewards. The brand affects power cost, reliability and support.
Keep reading
Own the Bitcoin miner. Let OneMiners power, cool and watch it.
Hosting sites across five continents, power from 3.6 cents/kWh on the 7-year prepaid tier (as listed on 30 October 2026) and a 7-year warranty.
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This article is for education only and is not financial advice. Mining revenue depends on the Bitcoin price, network difficulty, fees, power costs and uptime, all of which change. Figures are estimates based on public network data and rates listed on oneminers.com on 30 October 2026; check the live pages for current rates and prices.
