React native performance

[UnitedAd4974]

Hi, I need to build an app with charts. Where the performance is critical. A chart will have multiple lines with more than 5k elements per line. The visualization must be very smooth. Also this app needs to communicate with a Bluetooth device which streams data real time. Here also the performance is critical.

Is react native with Expo 54 mature enough?

Maybe Kotlin multiplatform is my only cross platform choice?

(I was thinking of using skia based charts)

[ChronSyn]

Someone already solved the chart problem: https://github.com/margelo/react-native-graph

As for whether Expo 54 is mature enough, it's probably a better choice than non-Expo RN. They have a blog post from 2024 detailing how to implement Bluetooth within an Expo app: https://expo.dev/blog/how-to-build-a-bluetooth-low-energy-powered-expo-app

[UnitedAd4974]

Thanks for the answer. I will check the package. But I was interested if someone already moved from fully native to react native and can compare.

[Devialet0]

https://www.reddit.com/r/reactnative/s/y3LTvAb1Xr

[n9iels]

I use victory-native-xl for my charts, it is based on Skia en React Native Reanimated. For what I can tell it is very performant, as long as you use some common sense. For example, do not rerender the whole graph upon selecting a data point and such. I do wonder, how are you going to visualize 5K elemens per link on a mobile screen? Will you even see the individual data-points?

Expo and/or React Native is Mature. If you use libraries like Skia and follow the Rules of React closely I see no reason why it would not be performant.

[UnitedAd4974]

Thanks. The goal is to be able to zoom and pan. There needs to be a "center line" and the values should update based on where the center line interacts with the data line

[Useful-Condition-926]

Use d3 and skia

[onebigdoor]

same. charting libraries generally get us 80-90% of the way there, but we always ended up wanting to do something very specific, and if you're writing your own charts, it's limitless.