What Is 5G RedCap: 6 Use Cases in IoT

The expansion of IoT (Internet of Things) has created a diverse spectrum of connectivity demands. While low-power networks serve simple sensors and 5G eMBB powers high-performance devices, a significant gap exists for mid-tier applications. 5G RedCap (Reduced Capability) has emerged as the purpose-built standard to fill this void, offering a balanced profile of performance, cost and power efficiency for the next wave of connected technology.

Charting the IoT Connectivity Landscape

At one end of the IoT spectrum, low-power wide-area networks, including NB-IoT and LTE-M, handle low-complexity devices that transmit small data payloads infrequently. These technologies were built for simplicity, delivering battery lifetimes measured in years and cost-effective modules. 

Still, they top out at speeds of just a few hundred kilobits per second. That ceiling rules them out for anything that requires video transmission, frequent data uploads or sub-second response times.

At the other end, full 5G NR powers the most demanding applications through its eMBB and URLLC service classes. RedCap fills the space between those high-performance tiers and massive machine-type communications (mMTC). It targets devices that need moderate throughput, lower latency and longer battery life but cannot justify the cost of a full NR modem.

The low-latency and high-bandwidth capabilities of 5G networks further enhance the real-time processing capabilities of IoT-powered autonomous systems, making applications like remote surgery, smart cities and advanced robotics more viable. However, those use cases demand the full capability profile and investment that most mid-tier deployments cannot justify.

A large category of devices falls between those extremes. Surveillance cameras streaming a few megabits per second, industrial sensors pushing sub-50ms condition updates and wearables handling voice calls all need more than LPWAN delivers. At the same time, none of them justify the cost or power draw of a full eMBB modem. RedCap exists to serve exactly this gap.

Defining the 5G RedCap Standard

5G support for RedCap devices was introduced in 3GPP Release 17 in 2022 to facilitate the expansion of the 5G device ecosystem to use cases with requirements that were outside the 5G specifications at the time.

Originally referred to as NR-Light during the study phase, the standard became formally known as Reduced Capability NR upon Release 17’s functional freeze.

Release 17 strips the 5G transceiver down to what mid-tier devices actually need—bandwidth capped at 20 MHz, no carrier aggregation or dual connectivity and as few as one receive antenna. These design choices reduce device complexity, size and power consumption while maintaining a peak data rate of up to 226 Mbps in downlink and up to 120 Mbps in uplink.

RedCap devices have power consumption comparable to LTE Cat 4 devices and offer features not supported by LTE IoT, such as network slicing. That last point matters for enterprise deployments: network slicing allows operators to carve out dedicated logical channels with defined quality-of-service parameters, which is critical for industrial automation and real-time monitoring workloads.

Release 18’s eRedCap pushes further, capping peak rates at 10 Mbps in both directions and cutting device cost below RedCap levels. That makes it a direct alternative to LTE Cat-1 for more constrained IoT applications.

5G operates on licensed spectrum, giving it nationwide reach, higher bandwidth and stronger security than unlicensed alternatives. RedCap inherits all of those characteristics while stripping out the hardware overhead that makes standard 5G modules impractical for mid-tier devices.

As of April 2025, GSA has identified 30 operators across 21 countries investing in RedCap, including commercial launches by China Mobile, China Telecom, China Unicom, Dito (Philippines), STC (Kuwait) and T-Mobile U.S.

Exploring Key 5G RedCap Use Cases

RedCap’s technical profile makes it well-suited for a distinct class of applications—those where LPWAN falls short on throughput and full 5G overshoots on cost and power. Six use cases illustrate where RedCap delivers the most practical value:

1. Industrial Sensors and Automation

Factory floors are among the most compelling use cases for RedCap. Smart factories can greatly benefit from RedCap technology by connecting various sensors within the factory, enabling real-time monitoring of temperature, vibration and production line efficiency without needing high-bandwidth connections for every sensor.

Automated guided vehicles benefit from RedCap, too. They need fast enough connectivity for path changes and collision avoidance, not the sub-millisecond precision of URLLC. Slicing the network keeps their traffic separate from other factory systems.

RedCap enables these devices to function efficiently with seamless mobility, supporting Industry 4.0 goals like predictive maintenance, process optimization and asset tracking, while allowing scalable deployment without the need for extensive hardware infrastructure.

2. Advanced Consumer and Medical Wearables

Smartwatches and health monitors have long been constrained by cellular technology. Connecting directly to a network via LTE-M resulted in limited data throughput—using full 5G led to unacceptable battery drain and oversized modem components. RedCap changes that equation.

RedCap makes Voice over NR practical on a wristwatch for the first time. Earlier 5G modems drew too much power for that form factor. With a narrower bandwidth requirement and extended discontinuous reception cycles, RedCap keeps the battery alive long enough to make VoNR worthwhile.

Some IoT industry players intend to introduce RedCap technology to wearable products right away. Until now, devices like smartwatches have usually been connected to the internet via the user’s smartphone. New products now use RedCap to link directly to the cloud. For medical monitoring devices, this shift from tethered to autonomous connectivity has meaningful implications for patient independence and real-time clinical data pipelines.

3. Smart City and Surveillance Networks

Video surveillance is one of the three reference use cases that 3GPP originally identified for RedCap during its study phase. Mid-tier security cameras, particularly the kind deployed across transportation hubs, public spaces and municipal infrastructure, need consistent, moderate-bandwidth uplinks. They are too data-intensive for NB-IoT and too numerous for operators to cost-effectively provision with full 5G connections.

Surveillance cameras in smart cities and public venues need steady, moderate throughput for compressed video. RedCap delivers that over 5G without the cost of a full NR modem, even in high-density deployments. Reduced device complexity lowers deployment costs while maintaining the bandwidth required for clear video transmission.

Cameras from Four-Faith and Askey use RedCap to monitor places like warehouses and transportation hubs. The ability to deploy large camera arrays under a single 5G SA core enables municipalities and private operators with a more scalable security architecture.

4. Logistics and High-Value Asset Tracking

Basic GPS pings no longer cut it for modern supply chains. Operations span more geographies and handling touchpoints, and operators need image capture, video verification and frequent sensor uploads that LTE Cat-1 and NB-IoT cannot support.

RedCap closes that gap. Trackers transmit images and sensor logs far faster than LTE-M, and fleet operators use them to stream engine diagnostics and dashcam footage in near real time. The 5G SA core adds multi-constellation GNSS support, sharpening location precision well beyond older cellular standards.

For high-value freight where theft or damage carries serious financial consequences, richer telemetry and tighter positioning make a real operational difference.

5. Smart Grid and Energy Management

Smart meters have long relied on NB-IoT, and for simple reads, that works fine. But distribution automation, substation telemetry and fault detection all demand faster, more frequent data exchanges than NB-IoT can handle.

Smart grid applications, such as substation telemetry and distribution automation, can benefit from RedCap’s latency and throughput profiles. RedCap brings improved latency, peak data rates and reliability to these applications compared with traditional IoT connections such as NB-IoT and LTE-M.

In one early deployment, China Unicom partnered with State Grid Shandong to cut energy consumption using RedCap-connected terminals. This is a concrete result that illustrates how improvements in network efficiency at the device level translate into measurable operational outcomes for grid operators.

6. Fixed Wireless Access

Beyond IoT strictly defined, RedCap opens a new cost tier for fixed wireless access deployments. Standard 5G CPE hardware is priced out of many consumer and emerging-market scenarios. RedCap-capable CPE devices reduce the up front hardware cost substantially by eliminating the multi-antenna configurations and wide-bandwidth radio chains required by full 5G.

RedCap enables manufacturers to build smaller, cheaper CPE units for 5G fixed wireless access, opening markets where hardware costs have been the main barrier to adoption.

Nearly 500 operators across 176 countries already offer LTE or 5G fixed wireless broadband. As 5G SA networks grow and carriers refarm older spectrum, RedCap-based CPEs give them a cheaper way to reach underserved areas while consolidating their radio access networks.

5G RedCap as a Foundation for Massive IoT and Beyond

By giving up raw throughput in exchange for lower cost, smaller footprint and longer battery life, RedCap turns 5G into a platform for the full range of connected devices. The architectural choices made in Release 17 will carry forward as eRedCap matures and 6G takes shape, laying groundwork for a world with hundreds of billions of endpoints.