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3MP Security Cameras

3MP is a niche legacy resolution between 2MP and 4MP — uncommon in current product ranges, occasionally available on older or specific-application cameras. For most installs the better choice is to step up to 4MP (the current residential and small-commercial standard) or step down to 2MP for short-range and budget-conscious contexts. The 3MP range is small as a result; we stock the available products for installs specifically needing this resolution but generally recommend 4MP as the right call.

Security Cameras Australia stocks the small 3MP range. For most buyers, step up to 4MP or down to 2MP.

For broader resolution choice see 4MP, 6MP, or 8MP / 4K.

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Why 3MP isn't a standard tier

The current resolution ladder for IP cameras runs 2MP (Full HD 1080p) → 4MP → 6MP → 8MP (4K) → 12MP for specialist use. 3MP exists historically and on specific models, but the current product range standardised on 4MP as the residential default — 4MP costs little more than 3MP, delivers meaningfully more identification headroom, and benefits from broader product range and longer firmware support.

What we recommend instead

  • For short-range and budget installs: step down to 2MP. The cost saving over 3MP is modest and the spec is well-supported.
  • For typical residential and small commercial: step up to 4MP. The standard, with the broadest product range, AcuSense and ColorVu options, and best long-term firmware support.
  • For higher detail: 6MP or 8MP / 4K.

Why buy from Security Cameras Australia

  • Authorised dealer · genuine Australian stock with warranty.
  • Expert support · we'll help you pick the right tier for the install, including stepping away from 3MP if that's the right call.
  • Price-match · free shipping · 30-day returns.

Shop 3MP cameras

Browse the small 3MP range below, or pick a more current tier: 2MP, 4MP, 6MP, 8MP / 4K.

Frequently Asked Questions about 3MP Security Cameras

Why are there so few 3MP cameras?

The current IP camera market standardised on 4MP as the residential default; 3MP exists as a legacy tier. Modern product ranges focus on 2MP, 4MP, 6MP and 8MP. 3MP is occasionally available on specific older models or niche applications, but the product range is narrow as a result.

Should I get 3MP or 4MP?

4MP, almost always. The cost difference is modest, identification headroom is better, and the product range and firmware support are significantly broader. The current Hikvision Pro Series, HiLook and other major brand ranges focus on 4MP as the standard residential tier.

Will an existing 3MP camera work with a current NVR?

Yes — most NVRs handle 3MP cameras via ONVIF. The camera is treated as a standard IP channel. If you're keeping an existing 3MP camera in service, no need to replace just for the NVR compatibility.

Is 3MP enough for a front door camera?

Technically yes for typical residential entry distance (3-5 m), but 4MP delivers better identification headroom at modest cost premium. For a new install, 4MP is the right call.

Should I replace my old 3MP cameras when upgrading?

Depends on the install. If the 3MP cameras still work and the position is suitable for the resolution, keep them and add new 4MP+ cameras at new positions. For full-system refresh, 4MP+ across the install for consistency.
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