Z-Wave Long Range: What the 800 Series Means for Your Smart Home

Z-Wave has been the backbone of my smart home for years. It's reliable, it doesn't clog up my WiFi, and it just works. But I'll be honest — when Thread and Matter started getting all the hype in 2023, I wondered if Z-Wave was going to fade away. Then Silicon Labs dropped the 800 series chips, and suddenly Z-Wave had a roadmap that made me genuinely excited again.

I've been testing 800 series devices for the past few months, and the improvements are real. Let me break down what's actually changed and whether it's worth caring about.

What's New in the 800 Series

The Z-Wave 800 series is built on Silicon Labs' EFR32ZG23 chip, which is a significant hardware upgrade over the 700 series that launched in 2020. The headline feature is Z-Wave Long Range (ZWLR), but there are several other improvements packed in.

First, range. Standard Z-Wave has always worked on a mesh network principle — each device repeats signals to extend coverage. That works great in a typical house, but it falls apart when you need to reach a detached garage, a shed, or anything outside your main building's footprint. Z-Wave Long Range changes this by adding a star topology option (direct hub-to-device communication) with a theoretical range of up to one mile line-of-sight. In real-world testing, people are consistently getting 600-800 feet through walls, trees, and other obstacles. That's a massive improvement.

Battery life gets a huge boost too. The 800 series chips use roughly 50% less power than 700 series in sleep mode. For battery-powered sensors — door/window sensors, motion detectors, water leak sensors — this means you're looking at years of battery life instead of months. That alone is a big deal if you're tired of swapping CR2032 batteries every few months.

Over-the-air (OTA) firmware updates are also faster and more reliable now. With the 700 series, OTA updates were technically possible but painfully slow and prone to failure. The 800 series makes this practical, which means manufacturers can actually ship improvements after you buy a device.

Z-Wave Long Range: The Real Game Changer

ZWLR operates on a different principle than traditional Z-Wave mesh. Instead of every device repeating every message, ZWLR devices communicate directly with the hub. This is similar to how LoRa networks work, and it's optimized for long distance and low power consumption.

The practical upside is huge for certain use cases:

• Detached garages and workshops can finally have reliable Z-Wave sensors without needing a second hub or a chain of repeater devices to bridge the gap
• Outbuildings, barns, and sheds are reachable — I've seen reports of people monitoring temperature sensors in detached buildings 200+ feet away with no issues
• Mailbox sensors actually work now — mounting a sensor on a mailbox at the end of a long driveway was basically impossible before
• Large properties with gates, pool houses, or separate guest houses can be one unified Z-Wave network

I want to be clear though: ZWLR doesn't replace regular Z-Wave mesh. They coexist. Your indoor devices will still use standard Z-Wave mesh networking. ZWLR is an additional mode specifically designed for those long-distance, low-power use cases. A single 800 series hub can handle both simultaneously.

Backwards Compatibility: Your Old Stuff Still Works

This was my biggest concern, and the answer is simple: yes, your existing Z-Wave devices work fine with 800 series hubs. The 800 series is fully backwards compatible with Z-Wave 500 series and 700 series devices. Your old Aeotec Multisensor 6, your GE/Jasco switches from five years ago, your Zooz ZEN76 paddle switches — they all pair and function normally with an 800 series controller.

The catch is that older devices won't gain ZWLR capability. That's a hardware limitation. A 700 series sensor can't suddenly reach a mile away just because your hub got upgraded. But they'll keep working exactly as they always have on the standard Z-Wave mesh, and they'll coexist perfectly fine alongside new ZWLR devices on the same network.

Security: S2 Is Now the Standard

The 800 series mandates S2 (Security 2) for all devices. S2 has been around since the 700 series, but it was optional and a lot of manufacturers shipped devices that still defaulted to the older S0 security or no security at all. With 800 series, S2 is required. This gives you AES-128 encryption for every device on the network, with a proper key exchange during pairing.

SmartStart is also fully supported and actually works well now. SmartStart lets you scan a QR code on a new device and pre-authorize it to join your network. When you power the device on, it automatically pairs without you needing to put the hub in inclusion mode. It's a small convenience, but it makes the setup process genuinely easier, especially for people who aren't tech-savvy.

Which Hubs Support 800 Series

If you want 800 series and ZWLR support, you need a compatible controller. Here's where things stand right now:

• Zooz ZST39 LR (~$35) — This is a USB Z-Wave stick with full 800 series support including ZWLR. It works with Home Assistant (Z-Wave JS) and other platforms that support USB Z-Wave controllers. This is probably the easiest upgrade path if you're running Home Assistant.
• Aeotec Z-Stick 7 (~$35) — Aeotec updated the Z-Stick 7 firmware to support the 800 series. If you already own one with a 700 series chip, check if a firmware update is available. Newer production units ship with the 800 series chip.
• Hubitat Elevation — The newer Hubitat C-8 hub includes an 800 series Z-Wave radio built in. If you're on a C-7 or older, you'd need to upgrade the hub itself.
• SmartThings — The SmartThings Station and newer hubs have 800 series support.

For Home Assistant users, the upgrade path is pretty straightforward. Buy a Zooz ZST39 LR or updated Aeotec Z-Stick 7, swap out your old Z-Wave stick, and migrate your network. Z-Wave JS has good support for 800 series features including ZWLR.

New 800 Series Devices Worth Watching

Device manufacturers are shipping 800 series products now, though the rollout has been gradual through 2024 and into 2025. Zooz has been leading the charge — their newer switch models use 800 series chips and support ZWLR. Aeotec has updated several of their popular sensors to 800 series as well.

The real unlock will be 800 series battery-powered outdoor sensors. The combination of ZWLR range and improved battery life makes outdoor Z-Wave sensors practical for the first time. Think: mailbox sensors, driveway sensors, gate monitors, garden moisture sensors, and detached building temperature monitors.

How Does It Compare to Thread and Zigbee?

Thread gets a lot of press because it's part of the Matter ecosystem, and Apple, Google, and Amazon are all backing it. Thread is great — it's an IP-based mesh protocol with low power consumption and it's the transport layer for Matter. But Thread's range per hop is similar to Zigbee (about 30-60 feet indoors), so for long-distance applications, ZWLR has a clear advantage.

Zigbee 3.0 is mature and has a massive device ecosystem. Range per hop is comparable to standard Z-Wave (maybe slightly less in practice). Zigbee's advantage is the sheer number of cheap devices available, especially from brands like Aqara and Sonoff.

Z-Wave's historical advantage has been its managed frequency allocation — each region gets a dedicated frequency band (908.42 MHz in the US) that doesn't overlap with WiFi like Zigbee's 2.4 GHz does. The 800 series doubles down on this with ZWLR, giving Z-Wave a genuine range advantage that neither Thread nor Zigbee can match.

My take: there's no single "winner." I run Z-Wave for switches and locks, Zigbee for cheap Aqara sensors, and Thread is slowly creeping in via Matter devices. ZWLR gives Z-Wave a strong niche for anything that needs range or reliable outdoor connectivity.

Should You Upgrade?

If you're happy with your current Z-Wave setup and everything reaches fine, there's no urgent reason to replace working devices. Your 500 and 700 series gear will keep working for years.

If you're buying new Z-Wave devices anyway, go with 800 series when available. The improved battery life and S2 security alone make it worthwhile, and you'll be ready for ZWLR when you need it.

If you've been frustrated by range issues — detached garage, outbuilding, large property — this is the upgrade you've been waiting for. Grab a Zooz ZST39 LR stick, swap it into your Home Assistant setup, and start adding ZWLR devices where you need the range. For the first time, Z-Wave can genuinely cover an entire property, not just the inside of your house.

The Z-Wave Alliance has been quieter than the Matter hype machine, but they've been doing solid engineering work. The 800 series is a meaningful upgrade that solves real problems, and I'm glad I stuck with the protocol.