We define horizontal accuracy as the radius of 68% confidence. In other words, if you draw a circle centered at this location's latitude and longitude, and with a radius equal to the accuracy, then there is a 68% probability that the true location is inside the circle.
according to gsmarena this new device support
dual band GPS/Galileo, also single-band GLONASS/Beidou
according to manufacture site, this new SoC has "Dual frequency GNSS". This new ability for qualcomm chips is internal the SoC, not like Xiaomi and Huawei smartphone models they are using one more chip (from broadcom) to add "Dual frequency GNSS" to the device capabilities. I believe, soon or late, this feature will pass to the mid and low end SoC of the company.
text from qualcomm site
Satellite Systems Support: GPS, GLONASS, Beidou, Galileo, QZSS, SBAS, Dual frequency GNSS
I want to remind to users with android 9 devices and also with hardware support for dual frequencies for GNSS receivers, to look for the follow setting. It's inside "developers menu". I don't know how this option affects the measurements results (I don't own a device with this capabilities), but you should give it a try
click images to see into full size
Xiaomi Mi 8
this model was the first smartphone ever, to support dual band GNSS. Up today, there a lot of enthusiast people they pay a lot of money to see with GPSTest application the L1 + L5 signals. But for what reason ? If there is no "cm accuracy" why to lose our money ??? And for not only this model !!!
what do you think about a new ability to GPSTest app. Some how, the user can see the
1.563–1.587 GHz (L1)
1.215–1.2396 GHz (L2)
1.164–1.189 GHz (L5)
text from the site review
The S10 uses BeiDou, GLONASS, and GPS for location services just like the Galaxy S10+. Unfortunately, it does not support SBAS or dual-GPS as the Mate 20 Pro does, which can improve location accuracy. Our review unit found a satellite fix quickly and accurately both indoors and outdoors. The device achieved a sat fix with up to 6 metres accuracy outdoors and 8 metres indoors, but generally took a few seconds to pinpoint our location having found a satellite to which it could connect.
The P30 Pro supports BeiDou, Galileo, GLONASS, GNSS and GPS for location services. We could not test whether the device supports SBAS though. It is worth noting that the P30 Pro supports dual GPS when being used in North America or Europe.
Our review unit finds a satellite fix quickly even when being used in buildings, which is impressive. The device can find a fix with up to 4 metres accuracy regardless of where it is being used, although we noticed that its accuracy fluctuated more indoors than it did outdoors.
We also subjected the P30 Pro to a short bike ride to test its location accuracy against our trusty Garmin Edge 500 bike computer. The two devices plotted us having travelled almost the same distance, with the P30 Pro claiming we cycled 50 metres further than the Garmin did. The two devices recorded roughly the same altitude information too, although our review unit tracked us more accurately overall, in our opinion. In short, the P30 Pro is ideal for all general navigation tasks and even as an alternative to a bike computer too.
text from review site
The 7 Pro uses BeiDou, dual-channel Galileo, GLONASS, dual-channel GPS including A-GPS and SBAS for location services. These allow our review unit to achieve a satellite fix with up to 6 metres accuracy outdoors, which is comparatively inaccurate for a flagship smartphone.
With this, the accuracy level of positioning reaches 1m level. The “57” in the lower right corner shows that the test conducted at a speed of 57 km/h and also reveals that it is not in a stationary state.
Lenovo Z6 Youth Edition will be equipped with Qualcomm Snapdragon 710 processor, using the domestic Beidou third generation system dual-frequency high-precision positioning chip
The data shows that the HD8040 is the world’s first multi-system multi-frequency high-precision SoC chip that supports the new Beidou-3 signal system.
1. it support dual band
2. GPSTest shows hertz data into CF column