Winner
$497.00
Updated October 2026
Data from the official Sonos site.
2026 verdict
Spatial listening is the job of a full-range speaker, so the Sonos Era 300 is the one that plays music on its own.
It is the Dolby Atmos speaker, with Alexa, Sonos Voice Control, Bluetooth and a wide set of smart-home integrations. The Sonos Sub Mini is a wireless subwoofer: dual-band Wi-Fi and Ethernet, Home Assistant only, and no voice, no microphone and no Bluetooth. It exists to add bass to a Sonos speaker or soundbar, not to replace one. Buy the Sonos Era 300 to hear the room. Add the Sonos Sub Mini only when a Sonos speaker is already there and the missing piece is low end.
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| Feature | Sonos Era 300 | Sonos Sub Mini | Winner |
|---|---|---|---|
| Price | $497.00 | $499.00 | Sonos Era 300 |
| Connectivity | 2.4 GHz WiFi, 5 GHz WiFi, Bluetooth, Ethernet | 2.4 GHz WiFi, 5 GHz WiFi, Ethernet | Sonos Era 300 |
| Integrations | Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant | Home Assistant | Sonos Era 300 |
| Voice Assistant | Amazon Alexa, Sonos Voice Control | None | Sonos Era 300 |
| Rating | 4.6 | 4.6 | Tie |
| Warranty | 1 year | 1 year | Tie |
What the differences mean
Speaker versus subwoofer
The Sonos Era 300 is a full-range spatial speaker, and its owners describe Dolby Atmos with a sense of height. The Sonos Sub Mini only reproduces bass for another Sonos speaker or soundbar. It does not play a track by itself and it does not take voice commands. Buying the sub instead of the Era leaves the room without a full-range speaker.
Voice and controls
The Sonos Era 300 has Alexa, Sonos Voice Control, a mic-off switch, volume controls and play and pause. The Sonos Sub Mini has none of those, and it has no microphone at all. You aim it from the Sonos system, not by talking to it.
Smart home reach
The Sonos Era 300 works with Alexa, Apple HomeKit, Google Home, SmartThings and Home Assistant. The Sonos Sub Mini lists Home Assistant and nothing else: Alexa, Apple HomeKit, Google Home and SmartThings are all unsupported. It is a bass module, not a smart-home endpoint.
How it connects
The Sonos Sub Mini has Ethernet built in, dual-band Wi-Fi, and no Bluetooth. The Sonos Era 300 has Bluetooth and dual-band Wi-Fi, and Ethernet only with a Sonos Combo Adapter. Line-in on the Era also needs a Sonos adapter. The sub is the one with a native network port, and the one you cannot stream to over Bluetooth.
Which one to buy if
- you need a speaker that plays music by itself
The Sonos Era 300 is a full-range spatial speaker with voice control. The Sonos Sub Mini only adds bass to another Sonos product.
- a Sonos speaker or soundbar is already short on bass
The Sonos Sub Mini is the wireless subwoofer owners pair with a Sonos speaker or soundbar. The Sonos Era 300 is not a subwoofer.
- you want Alexa or Sonos Voice Control on the device
The Sonos Era 300 has both. The Sonos Sub Mini has no microphone and no voice assistant at all.
- this box should show up in Apple HomeKit or Google Home
The Sonos Era 300 supports Apple HomeKit and Google Home. The Sonos Sub Mini supports neither, only Home Assistant.
Winner
$497.00
- + Price: $497.00
- + Connectivity: 2.4 GHz WiFi, 5 GHz WiFi, Bluetooth, Ethernet
- + Integrations: Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant
$499.00
- - Price: $499.00 vs $497.00
- - Connectivity: 2.4 GHz WiFi, 5 GHz WiFi, Ethernet vs 2.4 GHz WiFi, 5 GHz WiFi, Bluetooth, Ethernet
What owners say
Both groups are already inside a Sonos system, and both talk about pairing rather than about a voice assistant running the house. Sonos Era 300 owners single out height and space from Dolby Atmos, quick pairing into stereo or surround, and a hardware mic switch. They complain about the Sonos app feeling buggy, touch controls you have to look at, Bluetooth that sometimes drops, and line-in plus Ethernet living on separate adapters. Sonos Sub Mini owners single out deep bass from the force-canceling woofers and the way a paired soundbar or speaker sounds cleaner once the low end moves over. They complain that the pairing code is tiny, and some received a unit that would not connect until it was exchanged. They do not discuss voice controls, because this subwoofer has none.
Frequently Asked Questions
Which is better overall: Sonos Era 300 or Sonos Sub Mini?
The Sonos Era 300 if you need something that plays music. It is a full-range spatial speaker with Alexa, Sonos Voice Control and broad integrations. The Sonos Sub Mini is a subwoofer for bass under a Sonos speaker or soundbar you already own, and it does not replace that speaker.
Can the Sonos Sub Mini be used with the Sonos Era 300?
The Sonos Sub Mini is a wireless subwoofer for an existing Sonos system, and its owners describe pairing it with a Sonos speaker or soundbar. The Sonos Era 300 is a full-range Sonos speaker in that same system. This catalog does not publish a named Era 300 plus Sub Mini kit, so treat the Sonos Sub Mini as added bass, not as a substitute for the Sonos Era 300.
What is the biggest difference between the Sonos Era 300 and the Sonos Sub Mini?
One plays the whole track and the other plays the bass. The Sonos Era 300 has voice assistants, Bluetooth and smart-home integrations. The Sonos Sub Mini has Ethernet, no Bluetooth, no microphone and Home Assistant as its only integration.
Does the Sonos Sub Mini have Alexa or microphones like the Sonos Era 300?
No. The Sonos Era 300 has Alexa, Sonos Voice Control and a mic-off switch. The Sonos Sub Mini has no voice assistant, no microphone and no playback buttons. You control it through the Sonos system it is paired with.
Who should buy the Sonos Era 300?
Listeners who want Dolby Atmos spatial audio, a stereo pair or surround, and Alexa or Sonos Voice Control on a speaker that stands on its own.
Who should buy the Sonos Sub Mini?
Someone who already has a Sonos speaker or soundbar in a small or mid-size room and wants wireless bass under it, not a second full-range speaker.
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