Blink Video Doorbell (2nd Gen), Black, Add-On without Sync Module vs Ring Wired Doorbell 4K Pro (formerly Wired Doorbell Pro 3rd Gen), Deep Silver
These are side-by-side facts taken from each product guide: published specifications, strengths and caveats as their sources state them. This page is not a test, a ranking or a verdict about which model is better.
Blink Video Doorbell (2nd Gen), Black, Add-On without Sync Module
A household that already owns a Blink Sync Module
Blink's second-generation Video Doorbell runs on three replaceable AA lithium cells, shoots a square 1440 by 1440 image with a 150 degree head-to-toe view, and can be wired to 8-24VAC so your existing chime still rings. This particular listing is the add-on version: the required Sync Module is not in the box. Person detection, saved clips and the smarter alerts need a Blink plan.
Published specifications
- Listing title: required Blink Sync Module is NOT included with this add-on
- Blink: 1440 x 1440p, 1:1 aspect, 30 fps, 150 degree head-to-toe field of view
- Blink: three AA 1.5V lithium non-rechargeable cells included; up to two years claimed
- Blink: existing chime wiring 8-24 VAC, 50-60Hz, 40VA maximum
- Blink: 2.4 GHz 802.11b/g/n only; always-on broadband required; iOS 17 / Android 10
- Blink: operating -5F to 113F; one-year limited warranty and service included
Strengths
- Wired installation makes an existing in-home chime ring, per Blink's own article
- Replaceable AA lithium cells instead of taking the unit down to recharge it
- Box includes wire extenders, a drill template, a wall plate and a removal tool
Caveats
- This add-on listing does not include the Sync Module the doorbell requires
- Person detection, saved clips and richer alerts all need a paid Blink plan
- Blink says digital chimes do not typically supply enough power, and third-party wireless chimes are unsupported
Read the full Blink Video Doorbell (2nd Gen), Black, Add-On without Sync Module guide
Ring Wired Doorbell 4K Pro (formerly Wired Doorbell Pro 3rd Gen), Deep Silver
A home with a 16-24 VAC doorbell transformer and fast upload
Ring's Wired Doorbell 4K Pro, renamed from Wired Doorbell Pro (3rd Gen), runs from a 16 to 24 VAC doorbell transformer, with a separate PoE+ version. The wired box includes a Chime Kit Mini that must be fitted or the chime bypassed. Ring quotes a 140 by 140 degree view and 15 Mbps upload for 4K, and footnotes detection and recording features as subscription features.
Published specifications
- Ring: renamed from Wired Doorbell Pro (3rd Gen) on August 5, 2026
- Ring: 16-24 VAC, 50/60Hz, 10-40VA transformer; listing recommends 30-40VA
- Ring: 140 x 140 degree view; video 2880 x 2880 on spec page
- Ring: Wi-Fi 802.11ax, 2.4 and 5 GHz; 15 Mbps upload for 4K
- Size 1.95 x 1.02 x 5.45 in; -4 to 118.4 or 120 F by source
- Wired box: Chime Kit Mini, Corner Kit, plate; one-year limited warranty
Strengths
- Constant wired power with Wi-Fi 6 on both 2.4 and 5 GHz bands
- Corner Kit and Chime Kit Mini are in the box for the wired version
- A PoE+ version exists for homes without a suitable doorbell transformer
Caveats
- Needs a 16-24 VAC transformer; halogen and garden-lighting types are ruled out
- Ring gives two different pixel counts for its 4K label
- Person, package and vehicle detection and 24/7 recording need a Ring subscription
Read the full Ring Wired Doorbell 4K Pro (formerly Wired Doorbell Pro 3rd Gen), Deep Silver guide
How to choose between them
Choose the Blink Video Doorbell (2nd Gen), Black, Add-On without Sync Module if your situation matches: A household that already owns a Blink Sync Module. Its main caveat: This add-on listing does not include the Sync Module the doorbell requires.
Choose the Ring Wired Doorbell 4K Pro (formerly Wired Doorbell Pro 3rd Gen), Deep Silver if your situation matches: A home with a 16-24 VAC doorbell transformer and fast upload. Its main caveat: Needs a 16-24 VAC transformer; halogen and garden-lighting types are ruled out.
Both entries repeat what each guide records. Confirm the model, included parts and availability on the current listing before ordering.
Primary sources
- Blink support article on mechanical and digital chime systems for the Video Doorbell Source for Blink Video Doorbell (2nd Gen), Black, Add-On without Sync Module
- Blink Video Doorbell Product Sustainability Fact Sheet, May 2025, linked from the listing Source for Blink Video Doorbell (2nd Gen), Black, Add-On without Sync Module
- Ring support page for the Wired Doorbell 4K Pro, with tech specs and box contents Source for Ring Wired Doorbell 4K Pro (formerly Wired Doorbell Pro 3rd Gen), Deep Silver
- Ring article: Installing Wired Doorbell 4K Pro Hardwired Source for Ring Wired Doorbell 4K Pro (formerly Wired Doorbell Pro 3rd Gen), Deep Silver
- Ring article: Ring product name changes Source for Ring Wired Doorbell 4K Pro (formerly Wired Doorbell Pro 3rd Gen), Deep Silver
Primary sources checked .