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IoT & Smart Home · head to head

ESPHome vs SmartThings

ESPHome logo

ESPHome

IoT & Smart Home

Custom firmware for ESP8266/ESP32 smart home devices

From
Free
Rated
-
Full reviewWebsite
SmartThings logo

SmartThings

IoT & Smart Home

Samsung's intelligent IoT platform for smart homes

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: ESPHome eSPHome runs only on supported microcontrollers; the project recommends ESP32, ESP32-S3, ESP32-C3 and ESP32-C6 and advises against ESP8266 for new projects; SmartThings cloud-dependent with no offline operation; requires internet and Samsung servers for all device control
  • They diverge on capability: ESPHome covers YAML Configuration, SmartThings covers Multi-Brand Support.

Where they differ

Only the attributes on which ESPHome and SmartThings actually diverge.

Attributes where ESPHome and SmartThings differ
AttributeESPHomeSmartThings
Pricing modelopen-sourceUnknown
PlatformsESP8266, ESP32, Docker, Raspberry PiiOS, Android, Web, SmartThings Hub
Founded20181938

Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated), category (IoT & Smart Home).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in ESPHome

  • YAML Configuration
  • OTA Updates
  • Home Assistant Native
  • Custom Components
  • Home Assistant
  • MQTT
  • API
  • Native integration

Only in SmartThings

  • Multi-Brand Support
  • Device Control
  • Automations
  • Cloud Backup
  • 500+ device types
  • Voice Control
  • Routines
  • IFTTT integration

What people use each for

The jobs each tool is most often brought in to do.

ESPHome

  • Building custom smart home sensors and switches on ESP32 hardwarenot SmartThings
  • Replacing vendor cloud firmware on ESP based devices with locally controlled firmwarenot SmartThings
  • Integrating DIY devices into Home Assistant over a native API or MQTTnot SmartThings

SmartThings

  • Smart home controlnot ESPHome
  • Automation routinesnot ESPHome
  • Device integrationnot ESPHome
  • Remote monitoringnot ESPHome

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

ESPHome

  • ESPHome runs only on supported microcontrollers; the project recommends ESP32, ESP32-S3, ESP32-C3 and ESP32-C6 and advises against ESP8266 for new projects
  • Support for ESP32-H2, RP2040 and other newer chips is documented as less mature
  • Large displays and some sensors do not work well on ESP8266 because of its limited RAM, which is roughly a fifth of an ESP32

SmartThings

  • Cloud-dependent with no offline operation; requires internet and Samsung servers for all device control
  • Cloud communication adds latency compared to local hubs; device response delays up to one second
  • Confusing app transition between SmartThings Classic and SmartThings Connect with certain automations only working in one app
  • API changes requiring paid subscriptions starting October 2026 break third-party integrations like Home Assistant

Pricing, plan by plan

ESPHome

Free
  • CommunityFree
    • Full firmware
    • Home Assistant integration
    • Custom sensors

SmartThings

Free
  • Basic (SmartThings app)Free
    • Device control and automation
    • Support for Zigbee, Z-Wave, Wi-Fi, Matter

Which should you pick?

Choose ESPHome if

  • You need yaml configuration.
  • You want to start without paying.
  • You work on ESP8266, ESP32, Docker, Raspberry Pi.
  • You also want ota updates.
ESPHome review

Choose SmartThings if

  • You need multi-brand support.
  • You want to start without paying.
  • You work on iOS, Android, Web, SmartThings Hub.
  • You also want device control.
SmartThings review

Questions people ask

Is ESPHome or SmartThings better?
Neither clearly leads. ESPHome starts at Free and SmartThings at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, ESPHome or SmartThings?
ESPHome starts at Free and SmartThings at Free.
Does ESPHome or SmartThings run on more platforms?
ESPHome runs on ESP8266, ESP32, Docker, Raspberry Pi. SmartThings runs on iOS, Android, Web, SmartThings Hub.
Can I use ESPHome for free?
Both have a free tier, so you can try either at no cost before committing.
What is ESPHome best used for?
ESPHome is most often used for building custom smart home sensors and switches on esp32 hardware, replacing vendor cloud firmware on esp based devices with locally controlled firmware, integrating diy devices into home assistant over a native api or mqtt. Of those, building custom smart home sensors and switches on esp32 hardware and replacing vendor cloud firmware on esp based devices with locally controlled firmware are not what SmartThings is typically brought in for.
What can ESPHome do that SmartThings cannot?
ESPHome covers YAML Configuration, OTA Updates, Home Assistant Native, Custom Components. SmartThings covers Multi-Brand Support, Device Control, Automations, Cloud Backup.

Answered from the vendors’ own pages

SmartThings: Does SmartThings work offline?

No, SmartThings requires internet and Samsung servers to function. It cannot operate offline; all device control depends on cloud connectivity.

Source
SmartThings: Which communication protocols does SmartThings support?

SmartThings natively handles Zigbee, Z-Wave, Wi-Fi, and Matter protocols simultaneously through mesh networking.

Source
SmartThings: What is the cost of SmartThings API access for developers?

Starting October 2026, non-commercial developers using SmartThings API for third-party integrations like Home Assistant must pay $4.99/month. Free access continues through Q3 2026.

Source
SmartThings: Does SmartThings support voice assistants?

Yes, SmartThings is compatible with both Amazon Alexa and Google Assistant for voice control.

Source
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