Broadlink RM4 Mini Universal IR vs Broadlink RM4 Mini IR Hub: Spec Comparison
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This guide compares the broadlink rm4 mini ir universal vs rm4 mini s 2 4g. Both units are compact black infrared hubs that connect via 2.4 GHz Wi-Fi. They support over 50,000 IR devices and work with Alexa, Google Home, and IFTTT. The main difference is the included sensor cable. The RM4 Mini S set adds a temperature and humidity sensor for automated climate control. You need to know which setup fits your home automation needs.
Key differences
| Aspect | BroadLink RM4 Mini Universal IR Blaster | BroadLink RM4 Mini IR Hub with Sensor Cable |
|---|---|---|
| Included Hardware | RM4 Mini unit only | RM4 Mini unit and HTS2 Sensor Cable |
| Smart Home Compatibility | Alexa, Google Home, IFTTT | Alexa, Google Assistant, IFTTT, Siri |
| Sensor Capabilities | Not listed | Temperature and humidity sensing via HTS2 |
| Power Source | Not listed | 5V 1A adapter, USB |
Which one should you choose?
Choose BroadLink RM4 Mini Universal IR Blaster if
- You only need basic infrared control for TVs and air conditioners.
- You want the simplest setup without extra cables or sensors.
Choose BroadLink RM4 Mini IR Hub with Sensor Cable if
- You want to automate devices based on room temperature or humidity.
- You require Siri voice control on your iPhone.
Verdict: Choose the RM4 Mini Universal IR Blaster if you just need a basic infrared remote. Choose the RM4 Mini S 2.4G if you want to integrate temperature and humidity data into your automation routines. The sensor cable adds useful context for climate control.
RM4 Mini vs RM4 Mini S Specs
smart home compatibility
Both units connect to 2.4 GHz Wi-Fi and support Alexa, Google Home, and IFTTT. Product A, the BroadLink RM4 Mini Universal IR Blaster, lists these three platforms in its key specs. Product B, the BroadLink RM4 Mini IR Hub with Sensor Cable, adds Siri voice control to that same list. The data for Product B explicitly mentions Siri availability on iPhone, while Product A does not. This gives you slightly broader voice assistant options with Product B if you use Apple devices. Both rely on the same core smart home ecosystem for basic control.
built-in sensors
Product B includes an HTS2 Sensor Accessory that functions as a temperature and humidity sensor. You connect this cable between the RM4 mini unit and a USB adapter to display room conditions in the app. This allows you to set triggers, such as turning on an air conditioner when the temperature rises. Product A is listed as a universal remote control only. The data for Product A does not mention any temperature or humidity sensing capabilities. If you need automated climate control based on room conditions, Product B provides the necessary hardware included in the set.
connectivity type
Both devices rely exclusively on 2.4 GHz Wi-Fi for network connection. Neither unit supports Bluetooth, Zigbee, or RF-based devices. Product A explicitly states it does not support Bluetooth or RF devices. Product B also confirms it only supports 2.4 GHz Wi-Fi and not 5 GHz. Both use infrared signals to control appliances. This means you must ensure line-of-sight between the hub and your devices, as IR signals cannot pass through obstacles. Your network setup must provide a stable 2.4 GHz connection for either product to function correctly.
programmability
Both units support over 50,000 IR controlled devices through a cloud-updated library. You can control TVs, air conditioners, fans, and more. If your specific device is not in the library, both allow you to manually teach the hub using your original remote. This custom learning feature works identically on both models. The cloud library updates continuously to ensure compatibility with newer devices. You do not need to install additional software to learn new codes. The programming experience is the same for both, relying on the BroadLink app interface.
power source
Product B specifies a 5V 1A adapter and USB power source. The sensor cable connects to the unit via USB, requiring power from an adapter. Product A lists a weight but does not explicitly detail its power adapter specifications in the provided data. Both units are compact and likely use similar low-power USB adapters. However, Product B requires the sensor cable to be connected to function as a complete set. If you need the sensor features, you must use the specified USB connection. Product A may have simpler power requirements, but the data for it does not confirm this.
Which Broadlink RM4 Mini Should You Buy
Users wanting temperature and humidity data
The BroadLink RM4 Mini S includes an HTS2 sensor cable. This accessory measures room temperature and humidity. You can view these readings in the app. The data allows you to set triggers, such as turning on the air conditioner when the temperature rises. This sensor capability is not available in the standard model.
iPhone users needing Siri integration
Product B supports Siri voice control on iPhone. This feature is listed in its smart home compatibility specs alongside Alexa, Google Assistant, and IFTTT. Product A only lists Alexa and Google Home. If you rely on Siri for voice commands, this unit provides the necessary integration for your home automation setup.
Buyers seeking the simplest basic remote
The BroadLink RM4 Mini Universal IR Blaster offers core IR control without extra accessories. It connects via 2.4 GHz Wi-Fi and supports over 50,000 devices. You get standard compatibility with Alexa and Google Home. This model focuses on basic infrared control and learning functions without the added complexity of sensor cables.
The products compared
BroadLink RM4 Mini Universal IR Blaster
Best for: Automating standard IR appliances via voice
- Smart Home Compatibility
- Alexa, Google Home, IFTTT
- Network Interface
- 2.4 GHz Wi-Fi
- Connectivity
- Infrared
- Application
- Air Conditioners, Televisions
- Dimensions
- 1.89 × 1.89 × 1.69 inches
- Weight
- 3.53 ounces
View on Amazon: BroadLink RM4 Mini Universal IR Blaster Affiliate link
The Broadlink RM4 Mini is a compact infrared remote hub that connects via 2.4 GHz Wi-Fi. It supports over 50,000 devices and integrates with Alexa and Google Home. You can use preloaded templates or manually teach the device buttons. The unit measures 1.89 by 1.69 by 1.89 inches and weighs 3.53 ounces. It suits users who want to automate standard IR appliances like TVs and air conditioners.
Pros
- Supports over 50,000 IR controlled devices
- Compatible with Alexa and Google Home
- Allows manual button learning for unlisted devices
- Compact size at 1.89 inches wide
Cons
- Does not support Bluetooth or RF devices
- Limited to 2.4 GHz Wi-Fi networks only
- Requires line-of-sight for IR control
Good fit if
- You need to control standard IR appliances
- You have a 2.4 GHz Wi-Fi network
- You want integration with Alexa or Google Home
Skip if
- You require Bluetooth or RF device support
- Your Wi-Fi network only uses 5 GHz bands
- You need to control devices through walls
Verdict: Broadlink RM4 Mini IR Remote Hub is a straightforward solution for automating infrared devices. It fits users with 2.4 GHz Wi-Fi who need basic voice control via Alexa or Google Home.
BroadLink RM4 Mini IR Hub with Sensor Cable
Best for: Automating IR devices with environmental triggers
- Connectivity
- IR, 2.4 GHz Wi-Fi
- Smart Home Compatibility
- Alexa, Google Assistant, IFTTT, Siri
- Network Interface
- 2.4 GHz Wi-Fi
- Power Source
- 5V 1A adapter, USB
- Weight
- 3.53 ounces
View on Amazon: BroadLink RM4 Mini IR Hub with Sensor Cable Affiliate link
This set includes the RM4 Mini hub and the HTS2 sensor cable. It connects via 2.4 GHz Wi-Fi to control over 50,000 IR devices. The HTS2 accessory adds temperature and humidity monitoring to your routines. You can use voice commands with Alexa, Google Assistant, or Siri. It also supports IFTTT for advanced automations. This bundle suits users who want environmental data alongside universal remote control.
Pros
- Includes HTS2 sensor for temperature and humidity tracking
- Controls 50,000+ IR devices via cloud database
- Compatible with Alexa, Google Assistant, and Siri
- Supports IFTTT for custom automation routines
Cons
- Limited to 2.4 GHz Wi-Fi networks only
- Requires line-of-sight for IR signal transmission
- Uses 5V 1A adapter rather than higher power
Good fit if
- You need temperature and humidity data for automation
- You want to control legacy IR devices with voice
- You already use Alexa or Google Assistant
Skip if
- You only have 5 GHz Wi-Fi networks
- You need to control devices through walls
- You prefer 5V 2A or higher power adapters
Verdict: BroadLink RM4 Mini S with Sensor combines universal IR control with environmental sensing. It fits users who want to automate HVAC based on room conditions using voice commands.
Specifications side by side
| Spec | BroadLink RM4 Mini Universal IR Blaster | BroadLink RM4 Mini IR Hub with Sensor Cable |
|---|---|---|
| Connectivity | not stated | IR, 2.4 GHz Wi-Fi |
| Smart Home Compatibility | Alexa, Google Home, IFTTT | Alexa, Google Assistant, IFTTT, Siri |
| Network Interface | 2.4 GHz Wi-Fi | 2.4 GHz Wi-Fi |
| Power Source | not stated | 5V 1A adapter, USB |
| Application | Air Conditioners, Televisions | not stated |
| Dimensions | 1.89 × 1.89 × 1.69 inches | not stated |
| Weight | 3.53 ounces | 3.53 ounces |
| Size | RM4 mini | RM4miniS |
| Color | Black | Black |
| Model | RM4 MINI | RM4 mini S |
Frequently asked questions
Does the Broadlink RM4 Mini Universal IR Blaster include a sensor?
No. The BroadLink RM4 Mini Universal IR Blaster does not list any environmental sensors in its specifications. It is designed strictly for infrared control. You use it to send signals to devices like air conditioners and televisions. If you need temperature or humidity data, you must choose the model with the sensor cable instead.
What is the size of the Broadlink RM4 Mini IR Hub?
The BroadLink RM4 Mini IR Hub measures 1.89 inches in width, 1.69 inches in height, and 1.89 inches in length. It weighs 3.53 ounces. This compact form factor allows you to place it on a shelf or mount it near your infrared devices without taking up much space in your room.
Can I control my TV with the Broadlink RM4 Mini S?
Yes. The BroadLink RM4 Mini S with Sensor supports infrared connectivity. It is compatible with televisions as one of its primary applications. You can use voice commands through Alexa or Google Home to power your TV on or off, change channels, or adjust volume using the universal IR blaster feature.
What connectivity options does the Broadlink RM4 Mini Universal IR Blaster have?
The BroadLink RM4 Mini Universal IR Blaster connects via infrared signals. It links to your home network through Wi-Fi. This setup allows you to control devices that use infrared remotes. You manage these connections through your smartphone or voice assistant apps. The device does not list Bluetooth or Zigbee as options.
Is the Broadlink RM4 Mini IR Hub compatible with IFTTT?
Yes. The BroadLink RM4 Mini IR Hub supports IFTTT integration. This allows you to create custom automation routines. You can combine triggers from other smart home services with your infrared devices. This feature works alongside Alexa and Google Home support for more complex home control scenarios.
What color is the Broadlink RM4 Mini Universal IR Blaster?
The BroadLink RM4 Mini Universal IR Blaster is black. This color matches the BroadLink RM4 Mini S with Sensor. The black finish helps the device blend in with most home electronics and furniture. It is a standard design choice for compact infrared hubs.
Does the Broadlink RM4 Mini S measure room conditions?
Yes. The BroadLink RM4 Mini S with Sensor includes an HTS2 sensor cable. This accessory measures room temperature and humidity. You can view these readings in the app. The data allows you to set triggers for your infrared devices based on environmental changes, such as turning on an AC when it gets warm.

