Keysight InfiniiVision 1000X vs 4000X

The 1000X is a compact entry-level oscilloscope suited for education and basic debugging, with a 7-inch display and up to 50,000 wfms/s update rate. The 4000X is a high-end professional instrument with a 12.1-inch capacitive touch screen, 1M wfms/s update rate, and up to 1.5 GHz bandwidth. The 4000X's InfiniiScan advanced triggering enables automatic anomaly detection across complex waveforms — a capability the 1000X lacks entirely. The 20× improvement in update rate makes the 4000X dramatically better at catching rare glitches. If your work involves design verification, compliance testing, or multi-channel signal analysis, the 4000X is the appropriate tool; the 1000X covers basic bench measurement needs.