Cameras · Head to head

Eufy Cam S4 vs Reolink Duo 2V PoE

Full Smart Cameras comparison in 2026

Updated November 2026
Data from the official Eufy and Reolink sites.
2026 verdict
Tough wired dome or free-roaming solar tracker?
Reolink Duo 2V PoE
Winner
Reolink Duo 2V PoE
$159.99
Buy on Amazon USA
The Reolink Duo 2V PoE earns the recommendation for a permanent install, a vandal-resistant 4K dome that sees 180 degrees over one Ethernet cable. It is the more affordable and better reviewed of the two, sealed to IP67 against IP65, covered for 2 years against 1, and records 24/7 to microSD or an NVR with RTSP and no cloud plan at all. The Eufy Cam S4 is built for places a cable cannot reach: it runs on battery with solar charging, stores clips on 32GB built in plus microSD, works with Alexa, and uses a pan-tilt telephoto next to its wide lens to zoom on whatever moves. Both record 4K with color night vision. Pick the Reolink Duo 2V PoE for a corner or a driveway you can wire, and the Eufy Cam S4 for a fence, a tree or a shed far from power.
Works with
Connectivity
  • Wi-Fi 2.4 GHz
vs
Winner
Reolink Duo 2V PoE
Reolink

Reolink Duo 2V PoE

Prime exclusive deal
$159.99
Buy on Amazon USA

Also sold in packs

  • Pack of 2$319.98$159.99 per unitBuy
  • Ethernet
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FeatureEufy Cam S4Reolink Duo 2V PoEWinner
Price$349.99$159.99Reolink Duo 2V PoE
Rating4.24.4Reolink Duo 2V PoE
Warranty1 year2 yearsReolink Duo 2V PoE
Weather ResistanceIP65IP67Reolink Duo 2V PoE
PoENOYESReolink Duo 2V PoE
Solar ChargingYESNOEufy Cam S4
StorageInternal, MicroSD Card Slot, CloudMicroSD Card SlotEufy Cam S4
AlertsMotion, People, Animals, Vehicles, Familiar FacesMotion, People, Animals, VehiclesEufy Cam S4
Multiple LensesTriple (fixed wide + dual-lens pan-tilt zoom)Dual (180° panoramic)Tie
Connectivity2.4 GHz WiFiEthernetTie
2K VideoYESYESTie
4K VideoYESYESTie

What the differences mean

Power and connection

The Reolink Duo 2V PoE draws power and data from one Ethernet cable and has no Wi-Fi. The Eufy Cam S4 runs on battery and solar, or wired power, over 2.4 GHz Wi-Fi, so it can go where no cable runs.

Field of view

The Reolink Duo 2V PoE shows a fixed 180 degree picture, ideal for a building corner. The Eufy Cam S4 has a 130 degree wide lens plus a telephoto that pans 355 degrees to zoom in on movement.

Continuous recording

The Reolink Duo 2V PoE records 24/7 to microSD or an NVR at all times. The Eufy Cam S4 keeps a 24/7 history only when wired to power, and records events on battery.

Durability

The Reolink Duo 2V PoE is IP67 with a vandal-resistant dome and 2 years of warranty. The Eufy Cam S4 is IP65 with 1 year.

Alexa

The Eufy Cam S4 works with Alexa, Google Home and Home Assistant. The Reolink Duo 2V PoE works with Google Home and Home Assistant only.

Which one to buy if

  • you are wiring a corner of the house or a driveway with Ethernet
    Reolink Duo 2V PoE

    The Reolink Duo 2V PoE covers 180 degrees in 4K on one cable, recording around the clock.

  • the camera has to go on a fence or a tree with no power
    Eufy Cam S4

    The Eufy Cam S4 runs on battery and charges from the sun.

  • the camera sits within reach of passers-by
    Reolink Duo 2V PoE

    The Reolink Duo 2V PoE has a vandal-resistant dome and IP67 sealing.

  • you want to zoom on a far corner of the yard
    Eufy Cam S4

    The Eufy Cam S4 uses a pan-tilt telephoto lens, while the Reolink's digital zoom is weak by its owners' account.

Eufy

Eufy Cam S4

Prime exclusive deal
$349.99
Buy on Amazon USA
  • + Solar Charging: YES
  • + Storage: Internal, MicroSD Card Slot, Cloud
  • + Alerts: Motion, People, Animals, Vehicles, Familiar Faces
  • - Price: $349.99 vs $159.99
  • - Rating: 4.2 vs 4.4
Winner
Reolink

Reolink Duo 2V PoE

Prime exclusive deal
$159.99
Buy on Amazon USA
  • + Price: $159.99
  • + Rating: 4.4
  • + Warranty: 2 years
  • - Solar Charging: NO vs YES
  • - Storage: MicroSD Card Slot vs Internal, MicroSD Card Slot, Cloud

What owners say

Owners of both cameras agree on sharp 4K footage, good color night vision and the value of recording locally with no monthly fee. Eufy Cam S4 owners single out the dual-lens tracking that zooms and follows while the wide view stays put, plus solar charging and Eufy's quick customer service, and they complain about dropouts on busy 2.4 GHz networks, a heavy app and lens condensation in the cold. Reolink Duo 2V PoE owners say one dome replaces several cameras across a porch or a warehouse, praise the rugged vandal-resistant housing and easy Blue Iris and Home Assistant setup, and warn about dome-cover screws that strip easily, a spotlight that could be brighter and weak digital zoom.

Frequently Asked Questions

Which is better: Eufy Cam S4 or Reolink Duo 2V PoE?

The Reolink Duo 2V PoE for a wired install: it costs less, covers 180 degrees in 4K, records 24/7 locally and has an IP67, vandal-resistant build with a 2-year warranty. The Eufy Cam S4 is better where you need battery and solar power, Alexa or optical tracking.

Is Eufy or Reolink better for a PoE camera?

In this pair only the Reolink Duo 2V PoE uses PoE. The Eufy Cam S4 has no PoE: it runs on battery, solar or wired power and connects over 2.4 GHz Wi-Fi.

Do the Eufy Cam S4 and Reolink Duo 2V PoE need a subscription?

No. The Reolink Duo 2V PoE records to microSD or an NVR and has no cloud plan, and the Eufy Cam S4 records to 32GB built in or microSD. Both support RTSP.

Which covers more area, the Eufy Cam S4 or the Reolink Duo 2V PoE?

The Reolink Duo 2V PoE shows 180 degrees at once. The Eufy Cam S4 shows 130 degrees with its wide lens and uses a pan-tilt telephoto to look further in one direction.

Who should buy the Eufy Cam S4?

Homeowners who need 4K coverage where no cable can reach, with solar charging, built-in storage, Alexa support and a lens that tracks and zooms.

Who should buy the Reolink Duo 2V PoE?

Anyone with an Ethernet run who wants one tough dome to cover a corner, porch or driveway in 4K, recording 24/7 with Blue Iris or Home Assistant.

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