RUM tools capture the experience your real users have, in their browsers, on their devices. This is an honest shortlist for 2026, ordered by depth of front-end insight, OpenTelemetry support, session replay and privacy. Ops Singularity is not a dedicated RUM product, so it is not ranked here; where it fits is noted at the end.
Real User Monitoring tools all capture Core Web Vitals, front-end errors and session data; they differ on depth, session replay, OpenTelemetry support and privacy controls. We ordered by front-end depth and openness. Where autonomous resolution fits is covered at the end.
Rich RUM with session replay and Core Web Vitals inside the broad Datadog suite, tightly linked to backend traces. Best for teams already on Datadog wanting front-end and back-end in one place.
Read the comparison →Full-stack RUM with automatic front-end capture and causal analysis. Best when you want front-end experience tied to deep, automatic backend root cause.
Read the comparison →Mature browser and mobile monitoring with Core Web Vitals as part of a full-stack platform. Best for combined front-end and infrastructure visibility.
Read the comparison →Open-source front-end observability that feeds the Grafana stack and works well with OpenTelemetry. Best for teams that want open, self-hostable RUM.
Read the comparison →Started in front-end error tracking and added performance and Core Web Vitals. Best for developer-centric teams whose priority is catching and fixing front-end errors.
RUM built on the Elastic Stack, strong if you already run Elasticsearch. Self-manageable, with the operational cost of Elasticsearch at scale.
Read the comparison →These tools are strong at capturing and visualising the real user experience, and the open, OpenTelemetry-friendly options keep your instrumentation portable. What none of them do is resolve the incidents they surface. Ops Singularity is not a standalone RUM product, but it is OpenTelemetry-native, so it ingests the RUM telemetry these tools (or an OpenTelemetry browser SDK) produce, correlates it with the backend, and adds governed autonomous resolution, so a front-end regression leads to a fix, not just a chart.
It depends on your stack. Datadog and Dynatrace lead on depth and integration, Grafana Faro for open-source and OpenTelemetry, and Sentry for error-first developer teams. Match the tool to whether you value integration, openness or error focus.
Increasingly yes. OpenTelemetry browser instrumentation keeps your front-end telemetry portable and lets it flow into the same pipeline as backend traces, avoiding lock-in.
Ops Singularity is not a dedicated RUM product, but it is OpenTelemetry-native and ingests RUM and browser telemetry, correlating it with the backend and adding autonomous resolution on top.
Bring a real incident. We will show you Sentinel investigate, act and verify end to end, with every action reversible and audited.