Video Doorbell (Wired) S330
- Never Miss What Happens at Your Door: The eufy Video Doorbell (Wired) S330 runs on your existing 16–24VAC doorbell wiring, so it stays powered and awake around the clock. Battery doorbells sleep to save power and can sleep through motion. The S330 does not.
- See Your Packages After They're Delivered: The S330 watches the area where packages are placed with a second, low-angle camera. When a courier leaves a box at your door, it stays in view.
- See How Visitors Approach: Every event starts with a 3-second preview, so you can see how a visitor walked up to your door and what they did, not just the moment motion triggered.
- 2K with HDR: The S330's front camera records in 2K (2560×1920) with HDR. Visitors backlit by the sun can still be seen in color and clarity.
- No Monthly Fee: Recordings are stored on the doorbell itself, so watching your own footage never requires a subscription. Nothing to buy later, nothing recurring to pay.
Note:
1. Video Doorbell (Wired) S330 must connect to your existing wires.
2. The power requirement is wiring with 16-24VAC, 30VA, or more. A common 16V 10VA transformer is usually not enough. If your doorbell shows offline or the chime acts up, check the transformer first.
3. If your transformer doesn't meet this standard, you'll need a new transformer to install your doorbell. Hire an electrician if you're unsure.
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Learn More about eufy Video Doorbell (Wired) S330
1. What Is the eufy Video Doorbell (Wired) S330?
The eufy Video Doorbell (Wired) S330 is a hardwired 2K dual-camera video doorbell with no monthly fee. A front camera records visitors in 2K, and a low-angle second camera watches where packages are placed. It is made for homes with existing doorbell wiring: once connected, it runs around the clock with no battery to charge.
- Power: Hardwired only, no battery. Requires 16–24VAC, 30VA or higher
- Subscription: None required for recording and playback
- Storage: 8GB built-in. About 90 days of events at typical use
- Recording: Motion-triggered events, not 24/7 continuous
- Compatibility: Amazon Alexa and Google Assistant. HomeKit not supported
- Chime: Included in the box
1. Great for
- Homes with existing doorbell wiring. The S330 is powered by wiring, not a battery, so it stays awake and does not sleep through motion the way battery doorbells can.
- Homes that get frequent deliveries. The low-angle camera keeps delivered parcels in view after the courier leaves. If a package goes missing, you have the recording.
- People who don't want to pay to watch their own footage. Every recording stays on the doorbell itself. No plan to buy, no recurring fee.
- Alexa and Google homes that want voice control and live view. See the live feed on Echo and Google devices, and let an Echo double as the chime.
- Homes that want a doorbell, not an ecosystem. The S330 works out of the box with its own built-in storage. No hub or extra hardware needed.
2. Not Ideal for
- Homes without doorbell wiring. The S330 has no battery mode. Without existing wiring, choose a battery doorbell such as the Video Doorbell E340, which installs without any wiring.
- Anyone who needs 24/7 continuous recording. The S330 records events, not everything. For doorbell cameras that record continuously, see the Video Doorbell S4.
- Apple HomeKit homes. The S330 works with Alexa and Google Assistant only.
- Homes with an old 8V or 16V 10VA transformer. It is usually not enough for the S330. The symptoms are the doorbell dropping offline, or the chime acting up. A 24V 40VA replacement is the common fix, and it is a cheap one. See the note above.
1. S330, E340, or S4 — which eufy doorbell should I choose?
Pick by your home and budget:
S4 (wired, 3K panoramic, $299.99). You want 24/7 recording, color night vision, and the newest features, and you have or plan to add a HomeBase. It also works with HomeKit.
S330 (wired, dual-cam, $179.99). You have doorbell wiring, you want the package camera, and you want a doorbell that works on its own with built-in storage. No monthly fee.
E340 (battery or wired, dual-cam, $149.99). You have no doorbell wiring, you rent, or you want battery flexibility.
In short: wiring and simplicity, S330. HomeBase ecosystem and top specs, S4. No wiring, E340.
2. Is the eufy S330 battery powered or wired?
Wired only. The S330 has no battery and runs on your existing doorbell wiring. If you have seen battery-life information for an "S330", it may be about the eufyCam S330 solar camera, which is a different product.
3. Does the eufy S330 record 24/7?
No. The S330 records motion-triggered events. For 24/7 recording, see the Video Doorbell S4.
4. Do I need a subscription to use the eufy S330?
No. Recording and playback are included, with no subscription. The S330 saves events to built-in storage on the doorbell itself, about 90 days at typical use (25 events per day, 15 seconds each). When storage fills, the oldest events are overwritten automatically. Optional cloud backup is available if you want a second copy of your footage.
5. Does the eufy S330 come with a chime? Can I use my existing one?
Yes, a doorbell chime is included in the box. You can also use an Amazon Echo as the chime: enable the eufy Security skill in the Alexa app, link your eufy Security account, discover the device, and turn on Doorbell Announcement. Google Home Mini is not supported as a chime.
6. What happens to my recordings if the doorbell is stolen or damaged?
The recordings stay on the doorbell itself, so a stolen or damaged doorbell takes its recordings with it. Events already saved remain on the device's built-in storage, and pairing a HomeBase can keep a second copy on the base station.
7. Can the S330 connect to a HomeBase?
The S330 records to its own built-in 8GB storage and works on its own.
8. How well does package detection work on the S330?
It works well in typical conditions, and depends on lighting, placement, and obstructions. The low-angle camera and on-device AI detect people, packages, and faces. For the best package view, install the doorbell about 4 ft (1.2 m) above the ground with a clear line to where deliveries are placed.
9. Where can I find the S330 manual and installation guide?
The quick start guide is included in the box. The full manual and installation video are available on eufy Support. Search for "Video Doorbell S330" at support.eufy.com.
10. What transformer does the eufy S330 need?
The S330 requires a 16–24VAC power supply with a transformer rated at 30VA or higher. Older 8V or 16V 10VA transformers may not provide enough power. If the doorbell frequently goes offline or the chime behaves unexpectedly, check the transformer first. A 24V 40VA replacement is the common fix.
11. Where can I find the S330 manual and installation guide?
The quick start guide is included in the box. The full manual and installation video are available on eufy Support. Search for "Video Doorbell S330" at support.eufy.com.
Product Comparison
Hardwired Only
Working Modes
Works Standalone or with HomeBase™ (Not Included)
Doorbell Chime
1. Compatible with Existing Chimes
2. Alexa Echo Device as a Chime
3. eufy MiniBase Chime (Not Included)
4. HomeBase™ as a Chime (Not Included)
Local Storage**
8GB built-in local storage
Resolution
2K
Dual Cam
✓
Color Night Vision
-
Two-Way Audio
✓
Detachable Battery
-
Motion Detection
✓
Radar Detection
-
Human Detection AI
✓
Package Detection AI
✓
Face Recognition AI
✓
Rechargeable Battery or Hardwired
Working Modes
Works Standalone or with HomeBase™ (Not Included)
Doorbell Chime
1. Compatible with Existing Chimes
2. Alexa Echo Device as a Chime
3. eufy MiniBase Chime (Not Included)
4. HomeBase™ as a Chime (Not Included)
Local Storage**
8 GB on Device
Resolution
2K
Dual Cam
✓
Color Night Vision
✓
Two-Way Audio
✓
Detachable Battery
✓
Motion Detection
✓
Radar Detection
-
Human Detection AI
✓
Package Detection AI
✓
Face Recognition AI
✓
Hardwired Only
Working Modes
Works Standalone or with HomeBase™ (Optional)
Doorbell Chime
1. eufy Chime 2 (Included)
2. Compatible with Existing Chimes
3. Alexa Echo Device as a Chime
4. HomeBase™ as a Chime (Not Included)
Local Storage**
4GB eMMC built-in
Resolution
3K
Dual Cam
-
Color Night Vision
✓
Two-Way Audio
✓
Detachable Battery
-
Motion Detection
✓
Radar Detection
✓
Human Detection AI
✓
Package Detection AI
✓
Face Recognition AI
✓
Specs
Features
Dual Camera
Front Camera 160°, Package Camera 97°
Video Quality
Front Camera 2K (2560 ×1920), Package Camera 1080p（1600 × 1200）
Smart AI Support
Package Detection
Facial Recognition
Human Detection
Audio
Two-Way
Video Storage
Motion-activated event recording, 8GB built-in local storage (lasts up to 90 days).
(Recording duration estimation model: 25 recordings per day, each recording lasts 15 seconds)
Power and Connectivity
Power
Hardwired Only
Connectivity
2.4GHz, 433MHz Wireless
Installation
Recommended Use
Install the doorbell 4 ft (1.2 m) above the ground with no obstruction in front of the doorbell to achieve the best view.
Installation Method
Wire Power Installation
Installation Guide Video.
General
Weight
0.44 lb (0.2 kg)
Size
L5.4 x W2.0 x D1.1 in (L13.8 x W5.0 x D2.7 cm)
Color
Black
Operating Conditions
IP65, -4°F - 122°F (-20°C - 50°C), Weather resistant
Compatibility
Compatible with the Google Assistant and Amazon Alexa, HomeKit Not Compatible.
What's Included
eufy Security Video Doorbell (Wired) S330, Doorbell chime, Mounting kit, Screw packs, Quick start guide
Warranty
12 months
Note
Package Detection
Package detection and facial recognition are heavily influenced by the environment and human behavior.