5G RedCap vs LTE Cat-1
TL;DR
For a product shipping in 2026 or 2027 that has to work in several countries, LTE Cat-1 (or Cat-1 bis) is still the safe bet: it works on any 4G network and in roaming. 5G RedCap wins when the device needs well over 5 Mbps of uplink (video, gateways), when it will operate inside 5G Standalone coverage or on a private 5G network, or when you want 5G SA features such as network slicing. The sensible middle path today is a RedCap module with LTE fallback.
Comparison table
| Criterion | 5G RedCap | LTE Cat-1 |
|---|---|---|
| Standard | 3GPP Release 17 (2022), 5G NR | LTE, 3GPP Release 8; Cat-1 bis in Release 13 |
| Peak data rate | ~85 Mbps down and ~90 Mbps up (FDD, 1 antenna); ~60/20 Mbps in TDD. Two antennas double the downlink | 10.3 Mbps down and 5.2 Mbps up |
| Receive antennas | 1 or 2 | 2 (Cat-1) or 1 (Cat-1 bis) |
| Network required | 5G Standalone with a 5G core; does not work on 5G NSA | Any LTE network |
| Availability | 17 operators with RedCap launched worldwide (GSA, September 2026) | Virtually any 4G network |
| Roaming | 5G SA roaming is only starting; without LTE fallback there is no service off the SA network | Mature LTE roaming |
| Power saving | Idle eDRX up to ~2.9 h and relaxed measurements (Release 17) | LTE PSM and eDRX where the operator enables them |
| 5G SA features | Network slicing and 5G-core QoS, where the operator offers them | No |
| Ecosystem | 9 chipsets and 34 modules catalogued (GSA, September 2026) | Massive, mature ecosystem |
| Low-cost successor | eRedCap (Release 18): 10 Mbps cap, chipsets and devices expected in early 2027 | eRedCap is its natural 5G counterpart |
When 5G RedCap is the right call
Devices that upload well beyond what Cat-1 delivers, deploy where 5G SA exists (or on a private 5G network) and will stay in the field for many years. Always pick a module with LTE fallback unless you control the network.
- ·Surveillance cameras streaming continuous video
- ·Industrial routers and gateways with several devices behind them
- ·Advanced wearables and body cams
- ·Private or campus 5G deployments
- ·Products that need network slicing
When LTE Cat-1 / Cat-1 bis is the right call
Any product that needs up to a few Mbps and has to work on any network and in roaming from day one. The pragmatic replacement for 2G and 3G.
- ·POS terminals
- ·Alarms and security panels
- ·Telemetry and meters with moderate data
- ·Trackers without video
- ·International fleets on roaming
Verdict
As of November 2026, Cat-1 bis remains the default for general-purpose IoT because it works on any 4G network and in roaming. RedCap is the right choice when uplink bandwidth drives the design and the deployment sits inside 5G SA coverage, always with LTE fallback. In the medium term, Cat-1's 5G replacement is not RedCap but eRedCap, which GSA expects in commercial devices in early 2027.
FAQ
Does a RedCap module work on 4G networks?+
RedCap itself only works on 5G Standalone. Many RedCap modules also include LTE as a fallback, but not all of them do: check the datasheet before you choose.
Does eRedCap replace Cat-1?+
It is its 5G counterpart: a 10 Mbps cap in both directions and simpler modems, on the same network as RedCap. GSA expects commercial chipsets and devices in early 2027.
Is it worth waiting for eRedCap?+
If your product ships in 2026 or 2027, no. Cat-1 bis covers the same speed range today with a mature ecosystem. It makes sense to plan eRedCap for the next hardware revision.
What real speed will I get with RedCap?+
Less than the theoretical peaks. The 85-90 Mbps figures are physical-layer values for the minimum configuration in FDD; in the 3.5 GHz TDD band the uplink drops to about 20 Mbps, and cell load and coverage take the rest.
Keep reading
Sources
- 3GPP TS 36.306 §4.1: E-UTRA UE radio access capabilities: ue-Category
- 3GPP TS 36.306 §4.1A: ue-CategoryDL and ue-CategoryUL (DL Category 1bis)
- 3GPP TS 38.300 §16.13: NR and NG-RAN overall description: RedCap and eRedCap UEs
- 3GPP NR_redcap_enh (Rel-18): Enhanced support of reduced capability NR devices
- Ericsson Research (arXiv 2203.05634): Toward Smaller and Lower-Cost 5G Devices with Longer Battery Life: An Overview of 3GPP Release 17 RedCap (2022-03-10)
- GSA: 5G RedCap September 2026 (2026-09-24)
- Communications Today · GSA: Airtel deploying RedCap as global 5G standalone rollout lags: GSA (2026-10)
- Kaleido Intelligence: 5G Roaming: 375M+ consumer and IoT connections driven by NSA in 2026 (2026-03-16)
More comparisons
LTE Cat-1 vs LTE-M
Cat-1 wins if you need more bandwidth (CCTV, POS, gateways) or your target coverage is international without LTE-M guarantee. LTE-M wins if battery or deep indoor coverage is the priority and you can live with its bandwidth limits.
LTE-M vs NB-IoT
LTE-M wins when the device moves or needs low latency (asset trackers, alarms, wearables). NB-IoT wins when the device is static and needs multi-year battery with deep indoor coverage (meters, parking, sensors). When in doubt, check real coverage at your deployment country before standard specs.
Multioperador (Multi-IMSI) vs Roaming clasico
Multi-IMSI swaps the SIM identity to authenticate as a local subscriber in each country; sidesteps permanent-roaming blocks and improves effective coverage. Classic roaming keeps one identity and depends on the home carrier's agreements.