Off the top of my head:
Angular is more like Svelte+SvelteKit. Router and plumbing included. Angular 16 adds signals, so that's a recent difference.
Svelte handles shared state+reactivity as stores. Svelte contexts allows partitioning of shared state. Reactivity comes from a small superset syntax of JavaScript that acts a bit like a spreadsheet. Svelte is a compiler rather than a full-size runtime library.
Angular relies heavily on rxjs, and synchronous vs asynchronous state is quite distinct and "boilerplatey". Switching between sync and async can be a real pain sometimes. That said, Angular is VERY opinionated, which makes it predictable from a developer point of view. (I think SvelteKit is as well, but its track record is a lot shorter than Angular's.)
Variable interpolation looks about the same, but Angular uses custom HTML attributes for control flow whereas Svelte uses syntax that's more akin to Velocity templates.
Angular still has a virtual DOM, and the smallest app bundle is still often more than a megabyte even before it hits your code. Time to first render is still pretty bad. Angular's compiler, while faster in v15-v16, is still dog slow compared to many younger frameworks.
Svelte is smaller and faster at both compile time and runtime, at least when you have fewer than 250 components, give or take.
Angular components use annotations heavily and use separate files for logic, markup, and styling. Svelte components put logic, markup, and styling in a single file but with less boilerplate. Both support two-way data binding. Angular is more mature but somewhat arcane while Svelte looks much more like vanilla HTML/CSS/JS.
Svelte CSS styles are scoped to the component automatically by default without worrying about prefixes or naming conventions.
Angular routing is more programmatic. SvelteKit routing is filesystem path-based.
Svelte has a REPL. I don't know of one for Angular.
Angular has a massive ecosystem. Svelte's ecosystem is far smaller, but integration of vanilla JS libraries is typically easier with Svelte than Angular. Still, Angular's breadth of community is undeniably larger.