Benchmarking Elements V3: Stripe, VGS, Adyen and Braintree Compared

Basis Theory describes a rebuild of its checkout SDK, Elements v3, which uses iframe-based fields to collect card data without exposing it to customer servers, similar to offerings from Stripe, VGS, Adyen, and Braintree. The company emphasizes time to interactive—the point at which customers can type into card fields—and P95 latency as measures intended to better reflect user experience than averages, particularly on unreliable connections. In controlled Chrome, sandbox, and simulated-network tests, Basis Theory reports that v3 reduced median interactive time from 736 ms to 135 ms compared with v2, reduced transferred data from 1,138 KB to 86 KB, and improved slow-3G loading from 29.7 seconds to 5.9 seconds. It also reports faster and smaller performance than the competing SDKs tested across unthrottled, 4G, and slow-3G conditions, while noting that real-world results can differ by device, network, and location. Migration from v2 is presented as relatively straightforward because the create, mount, and tokenize workflow remains unchanged, although initialization is now synchronous, some element names have changed, and event payloads are available under event.detail.

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