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Cameras · Head to head

Eufy 4G Camera S230 vs Reolink Duo 3 WiFi

Full Smart Cameras comparison in 2026

Updated October 2026
Data from Amazon and official Eufy and Reolink sites.
2026 verdict
Unless the camera has to live far from any network, the Reolink Duo 3 WiFi is the better outdoor camera of this pair.
Reolink Duo 3 WiFi
Winner
Reolink Duo 3 WiFi
$219.99
Buy on Amazon USACheck price
Its two lenses stitch a 4K, 180 degree view, it records 24/7 to a microSD card of up to 512GB, streams over RTSP, detects people, animals and vehicles, joins dual-band Wi-Fi or Ethernet and carries a two-year warranty. The Eufy 4G Camera S230 exists for places the Reolink cannot reach: it connects over 4G cellular with no Wi-Fi, runs on a rechargeable battery, records 2K events to 8GB of built-in storage and has GPS, and it is the cheaper of the two. Both have color night vision, a spotlight and a siren. Buy the Reolink Duo 3 WiFi for a home with power and Wi-Fi, and the Eufy 4G Camera S230 for a cabin, a farm or a building site.
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FeatureEufy 4G Camera S230Reolink Duo 3 WiFiWinner
Price$109.99$219.99Eufy 4G Camera S230
Rating3.94.2Reolink Duo 3 WiFi
Warranty1 year2 yearsReolink Duo 3 WiFi
Connectivity4G2.4 GHz WiFi, 5 GHz WiFi, EthernetReolink Duo 3 WiFi
StorageInternalMicroSD Card Slot, CloudReolink Duo 3 WiFi
4K VideoNOYESReolink Duo 3 WiFi
RTSPNOYESReolink Duo 3 WiFi
AlertsMotion, PeopleMotion, People, Animals, VehiclesReolink Duo 3 WiFi
GPSYESNOEufy 4G Camera S230
Weather ResistanceIP67IP67Tie
PoENONOTie
Solar ChargingNONOTie

What the differences mean

Network

The Eufy 4G Camera S230 connects over 4G cellular and has no Wi-Fi, so it works where there is no home network. The Reolink Duo 3 WiFi needs 2.4 or 5 GHz Wi-Fi or an Ethernet cable.

Power

The Eufy 4G Camera S230 runs on a rechargeable battery rated for about 3 months, with no solar charging listed. The Reolink Duo 3 WiFi is plug-in only on 12V, so it never needs charging but always needs an outlet.

Recording

The Reolink Duo 3 WiFi records 24/7 to a microSD card of up to 512GB and streams RTSP. The Eufy 4G Camera S230 saves events to 8GB of built-in storage, with no microSD slot or RTSP.

Coverage and resolution

The Reolink Duo 3 WiFi records 4K across a 180 degree horizontal view. The Eufy 4G Camera S230 records 2K with a 120 degree diagonal view, which covers a gate or a single side of a building.

Location

The Eufy 4G Camera S230 has built-in GPS, useful when the camera guards equipment or a remote lot. The Reolink Duo 3 WiFi has none.

Which one to buy if

What owners say

Reolink Duo 3 WiFi owners give most of their praise to the image: 16MP video they call crisp, with a 180 degree panorama that shows almost no fish-eye and covers what would take two cameras. They describe the Wi-Fi 6 link as stable and fast at distance, like recording locally with no subscription and find the spotlight bright at night, with people, pet and vehicle detection that works. Their warnings: the ultra-wide view is wasted in a small room, distant subjects get grainy when zoomed, first setup can need a wired connection before switching to Wi-Fi, it can run warm in hot climates and no waterproof connector for the Ethernet cable comes in the box.

Price history compared

Every price change of both, in the same store, so the gap between the two lines is what one costs more than the other.

  • Eufy 4G Camera S230
  • Reolink Duo 3 WiFi

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Frequently Asked Questions

Which is better overall: Eufy 4G Camera S230 or Reolink Duo 3 WiFi?

The Reolink Duo 3 WiFi, where power and Wi-Fi are available: 4K, a 180 degree view, 24/7 recording to microSD, RTSP, vehicle detection and a two-year warranty. The Eufy 4G Camera S230 is the one for sites with no network, thanks to 4G cellular and a battery.

What is the biggest difference between the Eufy 4G Camera S230 and the Reolink Duo 3 WiFi?

How they connect and are powered. The Eufy 4G Camera S230 is a battery camera on 4G cellular with no Wi-Fi, while the Reolink Duo 3 WiFi is a plug-in camera on Wi-Fi or Ethernet.

Do the Eufy 4G Camera S230 and the Reolink Duo 3 WiFi need a subscription?

Not for storage. The Eufy 4G Camera S230 records to 8GB of built-in storage and has no cloud plan, and the Reolink Duo 3 WiFi records to microSD, with Reolink's cloud as an option.

Which smart home platforms do they support?

The Eufy 4G Camera S230 works with Alexa, Google Home and Home Assistant. The Reolink Duo 3 WiFi works with Google Home and Home Assistant, not Alexa. Neither supports Apple HomeKit.

Who should buy the Eufy 4G Camera S230?

Anyone guarding a vacation home, a farm, a construction site or equipment with no Wi-Fi and no outlet, who wants 2K video, GPS and local storage.

Who should buy the Reolink Duo 3 WiFi?

Owners of a wide driveway or yard with power and Wi-Fi who want 4K panoramic coverage and continuous local recording.

Full comparison table

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