Eufy Video Doorbell S4 Review 2026: Should You Buy This?

You press the doorbell. A crisp 3K video streams to your phone. No blur. No blind spots. Nothing escapes the camera. The Eufy Video Doorbell S4 promises exactly that, and it arrives at a time when smart doorbells have become a daily need rather than a luxury.

In this 2026 review, I share everything you need to know about this new device, from its dual-lens design to its AI tracking features, big battery, and zero monthly fees. Let us dive in.

Key Takeaways

• The Eufy Video Doorbell S4 uses a 3K 9MP camera with 24 FPS streaming. Video stays smooth and clear at all times.
• A 180° vertical and horizontal field of view removes blind spots across your porch, faces, and packages in one frame.
• A 10,000mAh built-in battery keeps the doorbell running for months. Wired power also works for users who prefer constant charging.
• No monthly fees apply. Local storage saves clips on the HomeBase, with no cloud subscription.
• AI motion tracking follows visitors and parcels, so the camera never loses sight of the action.
• The doorbell carries an IP65 weather rating, so rain and dust cause no issues outdoors.

What Is the Eufy Video Doorbell S4?

The Eufy Video Doorbell S4 is the newest flagship video doorbell from Eufy, the smart home brand owned by Anker. The device launched at IFA Berlin 2025 and reached wider release through CES 2026. It sits at the top of the Eufy doorbell lineup, replacing older single-lens models with a stronger dual-lens setup. The S4 aims at one clear goal: show the full picture of any visitor and package in a single, smooth frame.

Last update on 2026-07-17 / Affiliate links / Images from Amazon Product Advertising API

This Eufy model stands out for its high resolution, panoramic view, radar detection, and AI tracking. It joins the popular Eufy Video Doorbell E340 family, which already supports many similar features for buyers wanting a tested alternative.

Design and Build Quality

The S4 carries a clean and modern look that blends with most door frames. Eufy uses a matte black finish with a subtle faceplate that hides the lens nicely. The unit feels solid in hand, with a sturdy plastic shell that handles outdoor conditions well. The size sits between older Eufy doorbells and chunkier competitors like Ring, so it does not look bulky on a narrow frame.

A weather rating of IP65 means the doorbell stays protected from rain jets and dust. Homeowners in rainy or coastal areas get peace of mind year round. The button sits front and center with a soft glow ring, so visitors find it easily at night. The chime speaker stays clear and loud enough to act as a basic indoor chime.

Camera Specs and Video Quality

The headline feature here is a 3K 9MP sensor that streams video at 24 FPS. The vertical and horizontal field of view reaches 180° each, creating a full panoramic coverage area. Together, the result feels like a 360° view of your entryway without blind zones. No more cutting off faces at the top or hiding packages at the feet.

Color night vision comes bundled here. The S4 uses a starlight sensor that pulls strong detail from low light scenes. Faces, clothing colors, and car plates stay readable in dim settings. During daytime, the high resolution picks up crisp edges, fine textures, and small movements like a hand waving through the door.

Dual Lens and AI Tracking

Eufy packs two lenses in the S4. One wide-angle lens captures the full scene, and one tracking lens follows moving objects in real time. The tracking lens zooms and pans smoothly, so visitors walking past the door stay centered in the frame. This dual setup solves a common complaint with single-lens doorbells, which often lose subjects once they step sideways.

AI tracking also identifies people, parcels, and animals. You receive a smart alert only when something matters. The doorbell trims false alerts from passing cars, swaying trees, and shifting shadows. The result feels clean: your phone buzzes for a real visitor, not for every gust of wind.

Battery Life and Power Options

Power is a strong point of the S4. A massive 10,000mAh rechargeable battery sits inside the doorbell. Eufy estimates up to six months of use per charge, based on average motion events. Heavy traffic households get around three to four months, while quiet homes stretch past half a year easily.

For users who dislike recharging, wired power remains an option. You can hardwire the S4 to existing doorbell wires for 24/7 recording mode. The dual power setup gives buyers freedom: battery-only for renters, or wired for homeowners wanting nonstop coverage. Solar add-ons from Eufy also pair with the S4 through the HomeBase.

Storage and Subscription Costs

The Eufy Video Doorbell S4 continues the brand’s no monthly fee promise. All clips save to the HomeBase S380 with local expandable storage up to 16TB. You keep full ownership of your video history. Optional cloud backup exists, but the core experience stays free for life.

This setup contrasts with Ring and Nest, which push most users into paid plans for serious recording. Eufy keeps the doorbell useful from day one, even if you never spend another cent. For families watching their budget, this money-saving angle makes the S4 a strong value.

Top 3 Alternatives for Eufy Video Doorbell S4

If the S4 feels out of stock or out of budget, these three competitors also deserve a look.

Last update on 2026-07-17 / Affiliate links / Images from Amazon Product Advertising API

Last update on 2026-07-17 / Affiliate links / Images from Amazon Product Advertising API

Last update on 2026-07-16 / Affiliate links / Images from Amazon Product Advertising API

These models cover a wide range of budgets and feature preferences, from a budget-friendly Arlo option to a smart Google Nest and a popular Ring choice.

Smart Features and App Experience

The Eufy Security app brings every setting into one clean dashboard. Live view loads fast, and the dual-lens picture shows up side by side. You swipe between wide view and tracking view without lag. Push alerts carry rich previews, so you see a snapshot of the event before opening the app.

The app also bundles:

• Two-way audio with noise cancellation for clear speech with visitors
• Custom motion zones to ignore busy streets and focus on your porch
• Voice assistant support with Alexa and Google Home
• Family sharing so every household member sees alerts on their phone

A helpful package detection mode notifies you the moment a parcel lands at your door and again if someone picks it up. Delivery theft drops sharply when this mode stays on.

Installation Process

The S4 installs in about 15 to 30 minutes for most users. Eufy includes a mounting bracket, screws, anchors, and a charging cable inside the box. Battery mode means no wiring work at all. Drill two holes, screw the bracket, snap the doorbell on, and pair it with the HomeBase through the app.

Wired installation takes a little longer. You turn off the breaker, connect the existing doorbell wires to the back of the S4, mount the bracket, and restore power. The app guides every step with simple diagrams and short videos, so even first-time users finish the job.

Smart Home Integration

The S4 plays well with most popular smart home systems. Alexa users can pull live view onto Echo Show devices with a simple voice command. Google Home users cast the feed to Nest Hub displays in seconds. Apple HomeKit support stays limited for now, but most cross-platform routines still work through Alexa or Google actions.

HomeBase S380 also acts as a hub for other Eufy cameras, sensors, and locks. Buyers planning a full Eufy setup get a smooth path forward: one HomeBase manages every device, and one app controls everything.

Privacy and Data Security

Privacy matters a lot in any smart camera choice, and Eufy scores well here. Local storage means your clips never leave the HomeBase. Eufy also uses AES-128 encryption on data transfers and a TLS protocol for app communication. Voice and video go directly from the doorbell to your phone, not through third party servers.

Two-factor login adds another safety layer for the Eufy Security account. Eufy also runs regular firmware updates that patch new issues. Compared to cloud-only doorbells, this setup keeps your footage under your own roof.

Pros of the Eufy Video Doorbell S4

• Stunning 3K clarity at 24 FPS for smooth, detailed video
• Dual lens with AI tracking that follows visitors and parcels
• 10,000mAh battery with up to six months of life per charge
• No monthly fee thanks to local HomeBase storage
• IP65 weather rating for year round outdoor use
• Wide smart home support with Alexa and Google Home

Cons of the Eufy Video Doorbell S4

• Apple HomeKit support remains limited
• Price sits higher than basic single-lens doorbells
• New release means some retail listings still show limited stock
• HomeBase required for full smart features, sold separately in some bundles
• Wired setup needs basic electrical comfort, not ideal for total beginners

Price and Value for Money

The Eufy Video Doorbell S4 carries a price around $249 to $299 depending on bundle options. The HomeBase S380 often ships as part of early launch kits. While the price exceeds basic video doorbells, the lifetime savings on subscription fees add up fast. Ring Protect and Nest Aware plans can cost $40 to $60 per year per device, so a few years of Eufy ownership already pays for the price gap.

For buyers wanting a flagship experience without recurring bills, the S4 delivers strong long term value.

Who Should Buy the Eufy Video Doorbell S4?

This doorbell fits several user types well:

• Homeowners wanting top tier video quality and a hardwired option
• Renters needing a battery-only install with no wall damage
• Privacy focused users who avoid cloud subscriptions
• Smart home fans running Alexa or Google Home setups
• Package heavy families who need reliable delivery theft alerts

Light users who only want a basic peephole camera may find the E340 or the Arlo 2K more budget friendly. Power users get the most from this S4 experience.

Final Verdict

The Eufy Video Doorbell S4 stands as one of the strongest video doorbells of 2026. The 3K clarity, dual lens AI tracking, big battery, no monthly fee, and weather tough build all combine into a polished package. Yes, the price runs higher than entry level options, and HomeKit support lags a bit. Still, the long term savings on subscription fees and the premium video quality make this doorbell a smart buy for most households. If you want a future ready front door camera that respects your privacy and your wallet, the S4 deserves a top spot on your shortlist.

Frequently Asked Questions

Is the Eufy Video Doorbell S4 Worth Buying in 2026?

Yes, the S4 brings top tier 3K video, dual lens tracking, and no monthly fees. Buyers wanting a premium, future ready doorbell get strong value here.

Does the Eufy Video Doorbell S4 Work Without a Subscription?

Yes. All main features, including recording, AI detection, and live view, work without any monthly fee. Local storage on the HomeBase saves every clip.

How Long Does the S4 Battery Last?

The 10,000mAh battery runs up to six months per charge in average use. Heavy traffic homes see three to four months of life per charge.

Can the S4 Connect to Alexa and Google Home?

Yes. The S4 pairs with Alexa Echo Show devices and Google Nest Hub displays. Live view loads through simple voice commands.

What Is the Field of View on the S4?

The S4 offers a vertical 180° plus horizontal 180° view, creating a full panoramic scene with no blind spots across your porch and entryway.