The Leading Silicon Provider for Amazon Sidewalk Development

Amazon Sidewalk is a secure, long-range, low-power wireless network that extends connectivity for IoT devices well beyond the limits of traditional home Wi-Fi. It operates through Bluetooth Low Energy (LE), 900 MHz FSK, and LoRa (CSS) links to support a broad range of devices, including sensors, trackers, smart lighting, appliance and power tool diagnostics, and other smart home products. These devices communicate with the cloud through participating Amazon and Ring gateways. Together, the gateways create a shared neighborhood network that offers wide area coverage without requiring device makers to build or manage their own network infrastructure.

Devices communicate using Bluetooth LE, FSK, or CSS. Gateways relay messages between the device and AWS IoT Core for Amazon Sidewalk. The Amazon Sidewalk stack automatically selects the most appropriate link based on availability and range.

Learn more about the Amazon Sidewalk Developer Journey.

Yes. Before a device can operate on Amazon Sidewalk, it must complete a secure registration process. Registration can be performed using:

• Bluetooth LE via the Amazon Sidewalk Mobile SDK
• Bluetooth LE or FSK using Frustration Free Setup / Networking (FFS/FFN)CSS cannot be used for registration

Manufacturers can design a workflow where:

• The device contains certs from the factory
• The device auto-registers the first time it sees a Sidewalk gateway
• No user setup is required
• Telemetry begins immediately after successful registration

This enables use cases such as:

• Asset trackers that work “out of the box”
• Tools or appliances that report diagnostics without a customer account
• Environmental sensors that come online automatically

Learn more about the Amazon Sidewalk Developer Journey.

Yes. With the Amazon Sidewalk Location Library, devices can use BLE network location, Wi-Fi scanning, or GNSS scanning to resolve location in the cloud. The library automatically selects the most power-efficient method available.

Amazon Sidewalk coverage depends on the link type:

• BLE: short-range, in and around the home up to about  30 meters from nearest gateway
• FSK: long-range sub-GHz connectivity for neighborhoods up to about 250 meters from nearest gateway
• LoRa/CSS: very long range for wide-area, low-bandwidth applications up to about 750 meters from nearest gateway

Gateways aggregate into a neighborhood-scale network, allowing devices to connect even outside the home.

Silicon Labs outlines the full Amazon Sidewalk Developer Journey, from kit selection to deployment. 

The Silicon Labs Amazon Sidewalk Hardware Selector Guide provides a comprehensive look at our portfolio to select the right SoC or module for your project.

Download the Amazon Sidewalk Hardware Selector Guide.

An overview of Silicon Labs’ integrated, one-stop-shop Amazon Sidewalk solutions (SDK, SoCs, security, tools) can be found on the products tab of our Amazon Sidewalk wireless page and more information about how the shared wireless network is used can be found in the Ecosystems section of our website. 

Silicon Labs offers two SoC families for Amazon Sidewalk: the EFR32SG23, a secure, low-power sub-GHz FSK SoC, and the EFR32SG28, a secure, low-power dual-band SoC supporting sub-GHz FSK and Bluetooth LE.

Silicon Labs walks through the steps required for Amazon Sidewalk qualification as part of the Amazon Sidewalk Developer Journey. Developers should also refer to Amazon’s official qualification flow when ready for certification.  

Silicon Labs provides several developer trainings focused on Amazon Sidewalk, including:

• Kickstart Your Amazon Sidewalk Development
• Getting Started with Amazon Sidewalk
• Works With Amazon Sidewalk tracks (AMZ-103/201/301, SW-101/201/301)
• LPWAN / Amazon Sidewalk Tech Talks index
• The Amazon Sidewalk wireless page also features the latest webinars.

Silicon Labs has a getting started resource called: Getting Started with Amazon Sidewalk Development in Simplicity Studio.

Silicon Labs helps you:

• Start quickly with the Pro Kit for Amazon Sidewalk and Amazon Sidewalk-supported radio boards
• Certified Amazon Sidewalk SDKs and integrated tools in Simplicity Studio
• Secure Vault security and low-power SoCs (BG21/BG24, SG23, SG28, KG100S module)
• Detailed Amazon Sidewalk Developer Journey that from concept to launch, including tips for simplify development, reducing integration effort, and accelerating time-to-market 

The Silicon Labs EFR32SG28 Series 2 SoC is the dual-band option, supporting sub-GHz FSK for long-range Amazin Sidewalk plus Bluetooth LE for in-home connectivity. It offers up to 1024 kB Flash, 256 kB RAM, and up to 49 GPIO.

The Silicon Labs Pro Kit for Amazon Sidewalk (KG100S-PK6130A) includes the following:

• KG100S radio board (BLE + FSK + CSS), BG24 radio board, and FSK/CSS adapter
• Pre-programmed with an Amazon Sidewalk demo to quickly connects to AWS
• The recommended starting platform when you want all of the wireless protocols possible for Amazon Sidewalk

More details and purchase information can be found on our Amazon Sidewalk Pro Kit Blog. 

Bridge devices are opt-in Amazon and Ring products, such as Echo and Ring devices, and act as gateways for Amazon Sidewalk. They relay small, encrypted messages securely between nearby Amazon Sidewalk devices and the cloud.

Bridge devices extend Sidewalk coverage beyond the home by creating a shared neighborhood network. They forward data without accessing or viewing device payloads, enabling Amazon Sidewalk devices to connect without requiring manufacturers to deploy or manage their own gateway infrastructure.

Silicon Labs offers a compelling foundation for Amazon Sidewalk deployments by combining proven low-power wireless silicon with purpose-built software support.   
Key benefits of this strong partner ecosystem include:

• Integrated wireless and Amazon Sidewalk support: Silicon Labs devices deliver optimized performance across the wireless technologies used in Amazon Sidewalk profiles, including Bluetooth LE and 802.15.4, with SDKs that include Amazon Sidewalk integrations, reducing development complexity.
• Robust development tools: With Simplicity Studio, you get an integrated environment for code development, debugging, and network analysis for accelerating time to market while reducing integration risk.
• Comprehensive software stack: Silicon Labs provides well-documented libraries, examples, and reference designs for Amazon Sidewalk use cases, enabling developers to focus on product differentiation rather than stack integration.
• Low-power, high-efficiency SoCs: Our silicon is engineered for battery-sensitive IoT applications, supporting long battery life and reliable connectivity, which are critical attributes for Amazon Sidewalk endpoints.
• Ecosystem and support: You benefit from extensive technical resources, training, and direct support from Silicon Labs experts, as well as a broad ecosystem of third-party tools and modules.
• Proven Field Deployments: Silicon Labs technology is used in production-grade IoT devices today, demonstrating reliability and scalability in large-scale distributed networks.
• Choosing Silicon Labs helps streamline your Amazon Sidewalk product development while delivering high performance, low power consumption, and access to comprehensive development resources.

Silicon Labs outlines the full getting started workflow in our Amazon Sidewalk Developer Journey.

The Amazon Sidewalk SDK is provided by Amazon and is available to approved members of the Amazon Sidewalk program. Developers can request access and download the SDK, documentation, and reference materials through the Amazon Developer portal.

For Silicon Labs customers, Amazon Sidewalk support is delivered through Silicon Labs SDKs that integrate Amazon Sidewalk alongside the required wireless stacks and device support. Customers should use the Simplicity Studio development environment and the Amazon Sidewalk-enabled Silicon Labs SDK corresponding to their device family.

Access to Amazon Sidewalk resources is subject to Amazon approval and program terms.

No, Amazon Sidewalk uses a tiny fraction of your bandwidth (capped at 500 MB/month, 80 Kbps max speed) for low-power smart devices, so internet speed is not affected. 

Amazon Sidewalk is a free-to-connect network that offers coverage to more than 90% of the US population, with expansion planned for Canada, Mexico, and Europe in 2026.