Best for Siren loudness (if built-in)
Arlo Doorbell 2K (2nd Gen), AVD4001
4.4 feature score
Highest scored product for this feature based on supporting review evidence.
Best Home Security & Surveillance for Siren loudness (if built-in)
Siren loudness (if built-in) Decision Dashboard
Safest pick
Ecobee Smart Doorbell Camera
4.3 feature score
Balances feature score, supporting reviews, and overall product strength.
Most evidence
Reolink Video Doorbell
2 supporting reviews
Has the broadest review evidence for this feature.
Best overall product
Aqara Smart Doorbell G410
4.1 overall score
Strongest overall product among items with scored evidence for this feature.
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The built-in siren was treated as a useful and loud security extra in the reviews that discussed it.
Pros: Phone call integration, System completeness
Cons: Recording, Subscription
The siren was treated as a useful deterrent, with one reviewer describing it as loud.
Pros: Warranty and Support, Controls and indicators
Cons: Storage, Face recognition
The tamper siren evidence was limited but suggests the alarm is loud and attention-getting.
Pros: Multi-user sharing ease, Ongoing ownership costs
Cons: Phone call integration, Weather and temperature tolerance
The built-in tamper alarm was described as loud enough to blare and alert the owner.
Pros: Ongoing ownership costs, Complete kit in box
Cons: Pre-roll buffer, Data-usage efficiency (bandwidth)
The siren is present and uncommon for doorbells, but loudness is only middling because one reviewer wanted it louder.
Pros: Ongoing ownership costs, Automation flexibility
Cons: Face recognition, Delivery package monitoring