CasaSmart guide
Real differences between the two popular hubs: cloud vs local, device support, automations, cost.
CasaSmart
When you place Home Assistant and SmartThings side by side, you are not just comparing two control apps — you are comparing two different philosophies of how a smart home should work. Home Assistant is an open-source platform that runs locally, on your own device: a mini-PC, a Raspberry Pi, or a dedicated Home Assistant Green or Yellow. It tries to keep as much logic and as much data as possible inside your home. SmartThings, developed by Samsung, starts from the opposite idea: an easy launch, tightly tied to the cloud and to the Samsung ecosystem, where many things work the moment you connect a hub and install the app. Neither approach is absolutely "correct"; each suits a different type of user and a different level of technical involvement. In this guide we honestly weigh the strengths and trade-offs of each platform, with no invented numbers and no universal winner, so you can choose with full understanding. At CasaSmart we integrate and configure both solutions for clients in Moldova, so we will also flag the practical factors — internet connectivity, parts availability, long-term maintenance — that matter more in Chisinau than in an article written for another market.
The essential difference to remember from the start is where the decision is made. In a Home Assistant home, automations are evaluated on the local device: if the internet drops, your Zigbee lights, plugs and sensors keep responding to scenes, because the "brain" physically lives in your house. SmartThings can run partly locally through its hubs and Edge drivers, but an important share of logic, notifications and integrations with external services passes through Samsung's cloud. That means faster setup and simpler maintenance for SmartThings, but also more dependence on connectivity and on the manufacturer's decisions. Home Assistant offers greater control and privacy, in exchange for a learning curve and the responsibility of maintaining your own system. For a family that wants it to "just work", the balance looks different than for an enthusiast who wants to control every detail. That is why we never recommend a platform blindly; we start from how you actually want to use your home, from the devices you already own, and from how often you are willing to deal with configuration.
In practice, the choice is not always either-or. Many households in Moldova use Wi-Fi, Zigbee and Matter devices from different brands — Shelly, Sonoff, Aqara, MOES, Xiaomi — and both platforms can tie much of that together. There are even setups where SmartThings and Home Assistant coexist: the first as a familiar interface for users, the second as a layer of advanced automation and local data retention. The goal of this guide is not to convince you that one camp is superior, but to give you clear criteria: local versus cloud architecture, automation depth, hardware and hubs, Edge drivers, the learning curve, privacy, ecosystem and migration. For every topic we compare on verifiable characteristics, not on marketing figures. By the end you will know what questions to ask yourself before buying a hub, and what each option means for your budget, time and technical comfort. And if you would rather not handle it yourself, the CasaSmart team can design, install and maintain either approach, explaining in plain terms what you gain and what you give up.
TL;DR
Home Assistant is local-first, open-source and highly flexible, but it takes time to learn and you maintain it yourself. SmartThings launches more easily, is tied to the cloud and the Samsung ecosystem, but depends more on the internet and the maker's decisions. Choose Home Assistant for control, privacy and deep automations; choose SmartThings for simplicity and fast integration. Both support Matter and Zigbee and can even coexist. CasaSmart installs and maintains either one in Moldova.
Step 1
The most important difference is where the system "thinks". Home Assistant runs on a device in your home and evaluates automations locally; even if the internet drops, Zigbee, Z-Wave or Matter scenes keep working and your data stays with you. Remote access is optional and can be added via Nabu Casa Cloud or a VPN. SmartThings is built the other way around: its hubs and Edge drivers run part of the logic locally, but your account, many integrations and notifications depend on Samsung's cloud. The upside is a fast start and less upkeep; the downside is dependence on connectivity and on the maker's service decisions. In Moldova, where internet outages are not rare, this distinction matters: a Home Assistant home stays functional offline for essential tasks, which for many users is a decisive argument.
Step 2
Home Assistant lets you choose the host: it can run on a Raspberry Pi, a repurposed mini-PC, a virtual server, or the official Home Assistant Green and Yellow devices. Radios are added through USB Zigbee or Thread sticks and coordinators such as SkyConnect, so you scale exactly as needed. SmartThings relies on its hubs — Aeotec models, dedicated stations, or the built-in hub feature in some Samsung TVs and fridges — which already include Zigbee, Thread and Matter radios. Samsung's approach is more "out of the box": buy the hub, plug it in, start. Home Assistant asks for more decisions up front but gives full control over components and easy part replacement. In Moldova, what you can source locally and repair quickly also matters; a simple, easily replaceable station lowers the risk of being left without a working home.
Step 3
This is where the difference in philosophy shows most clearly. Home Assistant offers automations with multiple triggers, conditions and actions, templates, reusable scripts, helpers, and — for complex cases — integration with Node-RED for visual logic. You can build scenes that account for time, presence, sensors and the state of other devices, without artificial limits. SmartThings offers simple, clear Routines, plus a Rules API and Edge drivers for local functions; this is enough for most everyday scenarios — lights, presence, notifications — and far easier to set up at first. The trade-off: for very fine-grained logic or unusual integrations, SmartThings can hit limits that Home Assistant overcomes. Practical advice: if you only want a few common-sense automations, SmartThings' simplicity is an advantage; if you plan a home with dozens of interdependent rules, Home Assistant's flexibility will save you frustration over the long run.
Step 4
Both platforms have come to cover a wide range of devices, but by different routes. Home Assistant is known for a very large number of community-maintained integrations, plus Zigbee support via ZHA or Zigbee2MQTT, and support for Matter, Thread, Wi-Fi, BLE and even niche devices. SmartThings uses Edge drivers, the "Works With SmartThings" program and Matter support to connect certified products, with a more uniform adding experience. In practice, many devices popular in Moldova — Shelly, Sonoff, Aqara, MOES, Xiaomi — work on both, but the degree of fine control can differ from one product to another. Before buying, explicitly check whether your exact model is listed as supported. At CasaSmart we test real compatibility on the equipment sourced locally, because a generic "smart" label does not guarantee that every feature is exposed correctly in your chosen platform.
Step 5
SmartThings is undoubtedly friendlier for a beginner: install the app, add the hub, scan your devices, and you have a working home in a short time, with updates largely handled by Samsung. Home Assistant asks for more attention: initial setup, understanding the concepts of entities and integrations, backups, and updates that you apply yourself. The reward is total control and the ability to fix problems on your own, without waiting on a supplier. Over the long run, maintaining Home Assistant means discipline — regular backups, testing updates before applying them blindly — while SmartThings shifts part of that responsibility to the cloud, at the cost of depending on it. If you do not want to become the "administrator of your own home", either choose SmartThings or call on CasaSmart to set up and maintain Home Assistant, so you get the power without the daily hassle.
Step 6
For users who care about privacy, Home Assistant has a structural advantage: data about presence, sensors and habits stays local, and remote access is something you enable yourself, via Nabu Casa or a VPN, as you prefer. There is no obligation to send information to a commercial cloud for automations to work. SmartThings, by its nature, ties the account to Samsung services, and part of the data and logic passes through the cloud; this brings convenience and easy synchronisation across devices, but also means trust placed in an external company and its policies. Neither approach is inherently "unsafe" — it comes down to which trust model suits you. If you work with cameras, smart locks or sensors in sensitive areas, our practical recommendation is to prioritise local solutions and limit internet exposure, regardless of the platform you choose.
Step 7
Both platforms connect with popular voice assistants, but the context differs. Home Assistant can expose devices to Google Assistant and Amazon Alexa, act as a HomeKit bridge for Apple users, and has its own local voice assistant, Assist, for those who want commands without the cloud. SmartThings integrates naturally with Alexa and Google, and its strong point is the tight link with Samsung products — TVs, appliances, phones — which appear in the app right away. If your household already revolves around Samsung devices, SmartThings offers a coherent, all-of-a-piece experience. If, on the other hand, you have a mix of brands and want maximum flexibility, Home Assistant unifies everything under a single interface, regardless of manufacturer. In Moldova, where homes often combine equipment from different sources, Home Assistant's ability to be the neutral glue is frequently decisive, especially when you also want voice control that works offline.
Step 8
Over the long run, what matters is how easily you can change or extend the system. With Home Assistant, Zigbee and Matter devices can be re-paired, you export the configuration through a backup, and if the hardware fails you move everything to another host — control stays with you. With SmartThings, you are more tied to service continuity and to Samsung's decisions about its hubs and app. A pragmatic path is coexistence: keep SmartThings as the familiar interface and add Home Assistant as a layer of automation and local data retention. The honest conclusion: choose SmartThings if you want simplicity, a fast start, and you are already in the Samsung ecosystem; choose Home Assistant for control, privacy, deep automations and independence from the cloud. If you are unsure, CasaSmart can assess your existing devices, propose the right architecture and install the solution — or both — without locking you into a single direction.
The most common mistake is choosing a platform by enthusiasm rather than need: a beginner complicates life with Home Assistant without time to maintain it, or an enthusiast hits limits by choosing SmartThings for complex automations. Other errors: buying devices without checking the exact model as supported, betting entirely on the cloud in an area with unstable internet, ignoring backups, and mixing protocols chaotically without a clear Zigbee or Thread network plan.
Yes, coexistence is a real option. Many users keep SmartThings as the familiar interface and add Home Assistant for advanced automations and local data retention; both support Matter, which eases the link. Setup needs care to avoid duplicating control, but it works. CasaSmart can plan such a hybrid architecture for households in Moldova.
Home Assistant has the advantage here, because automations are evaluated locally; Zigbee, Z-Wave and Matter scenes keep running even if the internet drops. SmartThings runs part of the logic locally through the hub and Edge drivers, but depends more on Samsung's cloud for integrations and notifications. In Moldova, where outages are not rare, this difference can be decisive.
It has a steeper learning curve than SmartThings: you need to understand entities, integrations and backups, and you apply updates yourself. Many users manage with patience, but if you do not want to administer the system yourself, either choose SmartThings or ask CasaSmart to set up and maintain Home Assistant for you, so you get the power without the hassle.
As a rule, many popular models work on both platforms, via Zigbee, Wi-Fi or Matter, but the degree of fine control can differ from one product to another. We recommend checking the exact model as supported before buying. At CasaSmart we test real compatibility on equipment sourced locally, because the "smart" label does not guarantee that every feature is exposed correctly.
There is no single answer — it depends on your devices, how much control you want, and how much time you are willing to invest. For cloud independence, privacy and deep automations we often recommend Home Assistant; for simplicity and a fast start, SmartThings may be enough. We assess each case, propose the right architecture and install the solution, clearly explaining what you gain and what you give up.
● CasaSmart · Chișinău
CasaSmart can configure the Home Assistant automation and test it on real devices.