Cameras · Head to head

Eufy Cam S4 vs Ring Spotlight Cam 4K Pro (2nd Gen)

Full Smart Cameras comparison in 2026

Updated October 2026
Data from Amazon and official Eufy and Ring sites.
2026 verdict
Both cameras record 4K, and the Eufy Cam S4 wins on storage, power freedom and smart home reach.
Eufy Cam S4
Winner
Eufy Cam S4
$349.99

Last recorded price

It runs on a solar-charged battery, records to 32GB built in plus a microSD card or a HomeBase with no mandatory subscription, tracks with a fixed lens plus a pan-tilt zoom lens, and reaches Alexa, Google Home and Home Assistant. The Ring Spotlight Cam 4K Pro (2nd Gen) answers with radar-powered 3D motion detection, two 600-lumen spotlights, an 85 dB siren, dual-band Wi-Fi 6 and a long 10x zoom, but it needs mains power and a Ring subscription to save anything. Take the Eufy Cam S4 for a wire-free 4K camera you own, and the Ring Spotlight Cam 4K Pro (2nd Gen) for a Ring or Alexa home that wants radar alerts and bright lights.
Winner
Eufy Cam S4
Prime exclusive deal
$349.99
35% above its lowest price of the last 6 months ($259.99)

Last recorded price

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FeatureEufy Cam S4Ring Spotlight Cam 4K Pro (2nd Gen)Winner
Price$349.99$249.99Ring Spotlight Cam 4K Pro (2nd Gen)
Rating4.24.3Ring Spotlight Cam 4K Pro (2nd Gen)
Solar ChargingYESNOEufy Cam S4
Connectivity2.4 GHz WiFi2.4 GHz WiFi, 5 GHz WiFiRing Spotlight Cam 4K Pro (2nd Gen)
StorageInternal, MicroSD Card Slot, CloudCloudEufy Cam S4
RTSPYESNOEufy Cam S4
AlertsMotion, People, Animals, Vehicles, Familiar FacesMotion, People, Vehicles, Familiar FacesEufy Cam S4
LightYESSpotlightTie
Warranty1 year1 yearTie
Weather ResistanceIP65IP65Tie
PoENONOTie
2K VideoYESYESTie

What the differences mean

Power

The Eufy Cam S4 runs on a rechargeable battery charged by solar, so it mounts almost anywhere. The Ring Spotlight Cam 4K Pro (2nd Gen) plugs into a socket with a long USB-C adapter and stays tethered to that outlet, though it never needs charging.

Storage

The Eufy Cam S4 keeps footage on 32GB built in plus a microSD card up to 256GB or a HomeBase, with no mandatory subscription. The Ring Spotlight Cam 4K Pro (2nd Gen) has no local storage at all, so video history, 24/7 recording and smart alerts require a Ring plan.

Lighting

The Ring Spotlight Cam 4K Pro (2nd Gen) has two 600-lumen adjustable spotlights and an 85 dB siren for deterrence. The Eufy Cam S4 has a spotlight and a siren for color night vision, but it does not light the ground as brightly.

Smart home reach

The Eufy Cam S4 works with Alexa, Google Home and Home Assistant and supports RTSP when wired to power. The Ring Spotlight Cam 4K Pro (2nd Gen) works with Alexa and Home Assistant only, with no Google Home, and no RTSP stream for third-party recorders.

Connectivity and zoom

The Ring Spotlight Cam 4K Pro (2nd Gen) connects on dual-band Wi-Fi 6 and offers up to 10x zoom. The Eufy Cam S4 is limited to 2.4GHz Wi-Fi but answers with a dedicated pan-tilt zoom lens and up to 8x auto zoom for tracking.

Which one to buy if

Winner
Prime exclusive deal
$349.99

Last recorded price

  • + Solar Charging: YES
  • + Storage: Internal, MicroSD Card Slot, Cloud
  • + RTSP: YES
  • - Price: $349.99 vs $249.99
  • - Rating: 4.2 vs 4.3

What owners say

Owners of both 4K cameras lead with the picture, then split over how each is fed and stored. Eufy Cam S4 owners rave about the dual-lens tracking, a wide lens holding the scene while a zoom lens follows people and pets, plus sharp 4K and free local storage on 32GB built in, a microSD card or a HomeBase, all kept running by solar charging; their warnings are 2.4GHz-only Wi-Fi and a heavy app. Ring Spotlight Cam 4K Pro (2nd Gen) owners praise the sharper 4K over older Ring models, the 10x zoom, radar alerts and the plug-in power that ends battery swaps, but caution that no video is saved without a subscription.

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 Cam S4
  • Ring Spotlight Cam 4K Pro (2nd Gen)

Loading price history...

Frequently Asked Questions

Which is better overall: Eufy Cam S4 or Ring Spotlight Cam 4K Pro (2nd Gen)?

The Eufy Cam S4 for buyers who want a wire-free 4K camera that stores video locally without a subscription. The Ring Spotlight Cam 4K Pro (2nd Gen) is the pick for a Ring or Alexa home that values radar motion detection, bright spotlights and a 10x zoom and accepts a subscription.

What is the biggest difference between the Eufy Cam S4 and the Ring Spotlight Cam 4K Pro (2nd Gen)?

Power and storage. The Eufy Cam S4 runs on battery and solar and records locally for free, while the Ring Spotlight Cam 4K Pro (2nd Gen) is plug-in and keeps no video without a Ring subscription.

Do the Eufy Cam S4 and Ring Spotlight Cam 4K Pro (2nd Gen) both record in 4K?

Yes. Both record 4K, so the choice turns on power and storage. The Eufy Cam S4 adds a tracking zoom lens and runs wire-free on solar, while the Ring Spotlight Cam 4K Pro (2nd Gen) offers radar alerts, spotlights and a 10x zoom on mains power.

Does the Ring Spotlight Cam 4K Pro (2nd Gen) work without a subscription?

You get Live View, notifications, two-way talk, the spotlights and the siren without one, but no saved video. The Eufy Cam S4 is the one of the two that records locally at no cost.

Who should buy the Eufy Cam S4?

Buyers who want 4K detail, auto-tracking and local storage with no wiring, especially where the mounting spot has no power and solar can keep the battery charged.

Who should buy the Ring Spotlight Cam 4K Pro (2nd Gen)?

Ring and Alexa households that want a 4K spotlight camera with radar motion detection, a long zoom, bright lights and a siren, and are comfortable paying for Ring to store the footage.

Full comparison table

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