Arlo All-in-One Sensor vs Flume 2 Smart Water Monitor comparison

Updated August 2026

Data from Amazon and official Arlo and Flume sites.

2026 verdict

In this 2026 Arlo All-in-One Sensor vs Flume 2 Smart Water Monitor comparison, Arlo All-in-One Sensor comes out ahead thanks to price, rating, and sensors. Its biggest wins come from price, rating, and sensors, and alerts add more confidence to the verdict. Flume 2 Smart Water Monitor is the better fit only for buyers who prioritize weather resistance and connectivity above everything else here. As a general recommendation, Arlo All-in-One Sensor comes out on top.

Winner

Arlo

Arlo All-in-One Sensor

$29.19

Buy on Amazon USA

Flume

Flume 2 Smart Water Monitor

$199.00

Buy on Amazon USA

Feature	Arlo All-in-One Sensor	Flume 2 Smart Water Monitor	Winner
Price	$29.19	$199.00	Arlo All-in-One Sensor
Rating	4.1	4.0	Arlo All-in-One Sensor
Weather Resistance	NO	YES	Flume 2 Smart Water Monitor
Connectivity	Other	2.4 GHz WiFi, Other	Flume 2 Smart Water Monitor
Sensors	Water Leak, Temperature, Tilt	Water Leak	Arlo All-in-One Sensor
Alerts	Water Leak Alerts, Temperature Alerts, Freeze Temperature Alerts	Water Leak Alerts, Low Battery Alerts	Arlo All-in-One Sensor
Integrations	Google Home, Alexa, Samsung SmartThings	Google Home, Alexa, Home Assistant	Tie
On Device Alert Sound	NO	NO	Tie
On Device Alert Light	NO	NO	Tie

Winner

Arlo

Arlo All-in-One Sensor

$29.19

Buy on Amazon USA

+ Price: $29.19
+ Rating: 4.1
+ Sensors: Water Leak, Temperature, Tilt
- Weather Resistance: NO vs YES
- Connectivity: Other vs 2.4 GHz WiFi, Other

Flume

Flume 2 Smart Water Monitor

$199.00

Buy on Amazon USA

+ Weather Resistance: YES
+ Connectivity: 2.4 GHz WiFi, Other
- Price: $199.00 vs $29.19
- Rating: 4.0 vs 4.1

Frequently Asked Questions

Which is better overall: Arlo All-in-One Sensor or Flume 2 Smart Water Monitor?

Arlo All-in-One Sensor has the stronger overall profile in this comparison, especially for price, rating, and sensors.

What is the biggest difference between Arlo All-in-One Sensor and Flume 2 Smart Water Monitor?

Price is one of the clearest differences: Arlo All-in-One Sensor lists $29.19, while Flume 2 Smart Water Monitor lists $199.00.

Which one looks better on price?

Arlo All-in-One Sensor is listed at $29.19, while Flume 2 Smart Water Monitor is listed at $199.00. Arlo All-in-One Sensor (better spec).

Who should buy Arlo All-in-One Sensor?

Choose Arlo All-in-One Sensor if your priority is price and rating and that matters more than weather resistance.

Who should buy Flume 2 Smart Water Monitor?

Choose Flume 2 Smart Water Monitor if your priority is weather resistance and connectivity and that matters more than price.

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