10. SPS Performance

To measure SPS performance, throughput tests have been done for the DA14531, DA14535 and the DA14585 chipsets. The UART baudrate was set to 921600 bits/s in all tests. The connection interval is 25 msec and MTU negotiated to 247, but for iPhone tests MTU=185 bytes). For the test the following hosts were used: DA1453x, DA1458x, iPhone X (iOS 13) , Samsung M33 ( Android 12) and Huawei P40 (Android 10). The SPS performance analysis gives the following results regarding the service’s throughput.

Table 12 Performance Results for the DA14531 Device

Device	Host
DA14531	DA14531	iPhone XR	Samsung A52S	One Plus 7Pro
Tx to host	537.72 kbps 67.22 kBytes/s	188.75 kbps 23.59 kBytes/s	441.48 kbps 55.19 kBytes/s	525.27 kbps 65.66 kBytes/s
Rx from host	575.82 kbps 71.98 kBytes/s	189.66 kbps 23.71 kBytes/s	417.83 kbps 52.23 kBytes/s	381.8 kbps 47.73 kBytes/s

Table 13 Performance Results for the DA14531-01 Device

Device	Host
DA14531-01	DA14531	iPhone XR	Samsung A52S	One Plus 7Pro
Tx to host	537.855 kbps 67.23 kB/s	188.49 kbps 23.56 kB/s	433.45 kbps 54.18 kB/s	494.28 kbps 61.79 kB/s
Rx from host	576.06 kbps 72.01 kB/s	185.05 kbps 23.13 kB/s	410.87 kbps 51.36 kB/s	380.35 kbps 47.54 kB/s

Table 14 Performance Results for the DA14535 Device

Device	Host
DA14535	DA14535	iPhone XR	Samsung A52S	One Plus 7Pro
Tx to host	537.085 kbps 67.14 kBytes/s	189.04 kbps 23.63 kBytes/s	432.85 kbps 54.11 kBytes/s	534.67 kbps 66.83 kBytes/s
Rx from host	575.94 kbps 71.99 kBytes/s	186.36 kbps 23.3 kBytes/s	413.74 kbps 51.72 kBytes/s	383.2 kbps 47.9 kBytes/s

Table 15 Performance Results for the DA14585 Device

Device	Host
DA14585	DA14581	iPhone XR	Samsung A52S	One Plus 7Pro
Tx to host	537.085 kbps 67.14 kBytes/s	193.6 kbps 24.2 kBytes/s	450.66 kbps 56.33 kBytes/s	537.68 kbps 67.21 kBytes/s
Rx from host	588.22 kbps 73.53 kBytes/s	186.35 kbps 23.29 kBytes/s	410.34 kbps 51.29 kBytes/s	374.13 kbps 46.77 kBytes/s