eufyCam S4 2-Pack + Doorbell E340 + HomeBase 3: Bundle FAQ
By eufy - Built with Care | Home Security System & Robovacs | Published: 2026-11-01
Category: Buying Guides
Answers to the most common questions about the eufyCam S4 2-pack, Video Doorbell E340, and HomeBase 3 bundle—storage, power, detection, and whether it's worth it.
Quick answer
This bundle is a strong fit if you want one system to cover both the front door and wider outdoor areas, with local storage handled by HomeBase 3. It is less suitable if you only need a doorbell or if you require advanced package‑detection features that are not listed for the E340.
Why the S4's triple-lens design changes placement decisions
The eufyCam S4 combines a bullet lens with a pan‑tilt‑zoom lens, so a single camera can cover a wide field and then track and auto‑frame moving subjects. That means you can place it higher or farther back than a fixed camera and still get usable detail. The trade‑off is that the pan‑tilt‑zoom mechanism adds moving parts, so mounting it where it is protected from constant knocks (not a low‑traffic doorway) is more important than with a fixed bullet camera.
What the E340 doorbell adds that the S4 cameras do not
The Video Doorbell E340 uses two cameras—one facing visitors and one aimed down—so you can see a face and a package area at the same time. Color night vision is also included. The S4 cameras are outdoor‑area cameras; the E340 is specifically designed for the entryway. If your front door is recessed or has a narrow approach, check that the dual‑camera view is not blocked by a wall before relying on it for package monitoring.
HomeBase 3 storage: what it does and does not solve
HomeBase 3 is the local hub that stores footage from the cameras and doorbell. That reduces dependence on cloud subscriptions for basic recording, but it does not add features the cameras do not already support. If you want the simplest setup, HomeBase 3 is a benefit; if you already have a HomeBase S380, you may not need this bundle’s hub—check compatibility before buying.
Bundle FAQ
- Do I need HomeBase 3 if I already have one?
- No—if you already own a HomeBase 3 or HomeBase S380, you can often add cameras and the doorbell to your existing hub. Confirm the E340 and S4 are supported by your current HomeBase model before buying this bundle. Check your existing hub’s compatibility list first; buying a second hub is unnecessary if yours is supported.
- How is the S4 powered?
- The eufyCam S4 uses SolarPlus 2.0 for year‑round power, so you do not need to run wiring to the camera. Placement still matters: a spot with reasonable sunlight will keep the battery topped up more reliably than deep shade. Plan mounting locations with sun exposure in mind, not just the best viewing angle.
- Does the E340 doorbell require wiring?
- The included Video Doorbell E340 is battery powered, so it does not need existing doorbell wiring. You can install it on a wall or door frame where Wi‑Fi reaches. If you want it to ring a mechanical chime, check whether that requires additional setup. Battery power gives you placement freedom, but verify chime compatibility if you rely on an indoor bell.
- What kind of detection does the S4 offer?
- The S4 is listed with accurate detection and powerful deterrence, and its bullet‑to‑PTZ tracking and auto‑framing help follow movement. It does not list specific package or facial recognition features, so do not assume those are included. If package alerts are your top priority, rely on the E340’s downward camera rather than expecting the S4 to handle it.
- Is this bundle worth it compared with buying separately?
- The bundle price (USD 524.15) is lower than the catalog comparison price (USD 818.99) for the same items. If you need both outdoor coverage and a doorbell, the bundle saves money. If you only need one camera or a doorbell, a smaller kit is likely a better fit. Buy the bundle only if you will use both the S4 cameras and the E340 doorbell; otherwise choose individual products.
Bundle at a glance
- eufyCam S4 (2 pack) + Video Doorbell E340 + Homebase 3: Includes eufyCam S4 2‑Cam Kit, Video Doorbell E340 (Battery Powered), and HomeBase 3. You get two outdoor cameras and a doorbell in one purchase, so you can cover the front door and a wider area without buying separate kits.
eufyCam S4 (2 pack) + Video Doorbell E340 + Homebase 3
