What is the difference between each Arlo SmartHub and base station?

Arlo SmartHub

The Arlo SmartHubs offer the best Arlo experience and are compatible with all Arlo wire-free devices, except Arlo Go.

VMB5000

Compatible with: Arlo Ultra, Ultra 2, Essential wire-free, Pro 3, Pro 3 Floodlight Camera, Pro 2, Pro, Wire-Free, Video Doorbell, and Audio Doorbell.
Maximum streaming resolution: 4K with a compatible Arlo camera
Local storage: microSD cards, microSDHC, or microSDXC; up to class 10 UHS-3 V90
Integrated siren: No
Additional specifications: See page 7 of the Data Sheet.

VMB4540

Compatible with: Arlo Ultra, Ultra 2, Essential wire-free, Pro 3, Pro 3 Floodlight Camera, Pro 2, Pro, Wire-Free, Video Doorbell, and Audio Doorbell.
Maximum streaming resolution: 4K with a compatible Arlo camera
Local storage: USB Type A, 2.0 compatible
Integrated siren: No
Additional specifications: See page 6 of the Data Sheet.

Arlo Base Station with Siren

The Arlo base stations with siren are compatible with Arlo Ultra, Pro 3, Pro 3 Floodlight Camera, Pro 2, Pro, Wire-Free, Video Doorbell, and Audio Doorbell.

VMB4000

Compatible with: Arlo Ultra, Ultra 2, Essential wire-free, Pro 3, Pro 3 Floodlight Camera, Pro 2, Pro, Wire-Free, Video Doorbell, and Audio Doorbell.
Maximum streaming resolution: 4K with a compatible Arlo camera
Local storage: USB Type A, 2.0 compatible
Integrated siren: 100 dB
Additional specifications: See page 9 of the Data Sheet.

VMB4500

Compatible with: Arlo Ultra, Ultra 2, Essential wire-free, Pro 3, Pro 3 Floodlight Camera, Pro 2, Pro, Wire-Free, Video Doorbell, and Audio Doorbell.
Maximum streaming resolution: 4K with a compatible Arlo camera
Local storage: USB Type A, 2.0 compatible
Integrated siren: 90 dB
Additional specifications: See the Product Page.

Arlo Base Station

The Arlo base stations are compatible with Arlo Pro 2, Pro, Wire-Free, and Audio Doorbell.

VMB3000

Compatible with: Arlo Pro 2, Pro, Wire-Free, and Audio Doorbell.
Maximum streaming resolution: 1080p with a compatible Arlo camera
Local storage: No
Integrated siren: No
Additional specifications: See page 8 of the Data Sheet.

VMB3500

Compatible with: Arlo Pro 2, Pro, Wire-Free, and Audio Doorbell.
Maximum streaming resolution: 1080p with a compatible Arlo camera
Local storage: No
Integrated siren: No

Note: Arlo Q Plus, Q, Baby, and Go do not require a connection to SmartHubs or base stations.