Both the Realme 15T 5G and the Vivo iQOO Z10 support 5G connectivity, allowing for fast mobile data speeds. They are also equipped with dual SIM support, allowing the use of two SIM cards simultaneously. In terms of Wi-Fi, both phones support Wi-Fi 4 (802.11n) and Wi-Fi 5 (802.11ac), ensuring reliable wireless internet connections. The Realme 15T 5G supports a faster Bluetooth version 5.3, compared to the Vivo iQOO Z10's Bluetooth 5.2, and it offers faster download speeds of 3300 MBits/s, while the Vivo iQOO Z10 has a download speed of 2900 MBits/s.
The Realme 15T 5G has an external memory slot, allowing for expandable storage, while the Vivo iQOO Z10 does not offer this feature. Both devices have a USB Type-C port, but their USB versions are the same (version 2). Neither device supports NFC, and both have fingerprint scanners for biometric security. They also share similar sensors, including a gyroscope, accelerometer, infrared sensor, GPS, and compass, with both supporting Galileo for navigation.
While both phones are equipped with a cellular module, neither has advanced features like a barometer, HDMI output, or a built-in projector. Additionally, neither phone uses 3D facial recognition or has an iris scanner, and both lack motion and optical tracking. Overall, the Realme 15T 5G has a slight edge in Bluetooth and download speed, but both phones offer very similar connectivity features with only a few differences.