What is the difference between 'Pixel 7a' and 'Pixel 7'? After thorough examination of processing performance & battery performance, weaknesses and strengths became clear

Google's genuine Android smartphone '

Pixel 7a ', which can be purchased in the 60,000 yen range, is about 20,000 yen cheaper than 'Pixel 7', but has camera performance that beats Pixel 7 depending on the application . I was concerned about the performance difference between Pixel 7 and Pixel 7a other than the camera, so I examined in detail the 'benchmark score', 'battery performance', and 'temperature under high load'.

Google Pixel 7a with great features - Google Store

Like Pixel 7, Pixel 7a has two rear cameras. The camera specs are slightly different between the two, but the 'image quality when zooming' and 'blur correction performance for movies with violent movements' are almost the same. In addition, the Pixel 7a has a wider-angle lens than the Pixel 7, so it has better performance than the Pixel 7 in applications such as ``I want to record a wide range'' and ``I want to shoot with a dynamic composition.'' The camera performance of Pixel 7a and Pixel 7 is examined in detail in the following article. This time, we will examine in detail the 'processing performance', 'battery performance', and 'temperature under high load' that are important when using a smartphone.

Thorough verification of the camera performance of 'Pixel 7a', which is 20,000 yen cheaper than 'Pixel 7', has few conspicuous weaknesses, and has a high cost performance that beats Pixel 7 in wide-angle shooting-GIGAZINE

·table of contents
◆ 1: Pixel 7a and Pixel 7 benchmark showdown
◆ 2: Verify battery duration & charging speed
◆3: Check temperature change at high load
◆ 4: Summary

◆ 1: Benchmark confrontation between Pixel 7a and Pixel 7
Below is the screen that launched the standard benchmark application ` ` Geekbench 6 '' on Pixel 7a (left) and Pixel 7 (right). Pixel 7a should be equipped with Google's proprietary processor 'Google Tensor G2' like Pixel 7, but 'ARM ARMv8' is written on the screen of Geekbench 6.

Below are the benchmark results. The single core score is 1405 for Pixel 7a and 1450 for Pixel 7. The multicore score was 3280 for the Pixel 7a and 3488 for the Pixel 7.

The GPU compute performance benchmark result was 4290 for Pixel 7a and 4753 for Pixel 7.

◆ 2: Verify battery duration & charging speed
The Pixel 7a has a battery capacity of 4385mAh and the Pixel 7 has a battery capacity of 4355mAh. In order to verify the battery duration of both, we continued to play the YouTube movie with the brightness of about 80% and the volume of 50%, and investigated the timing when the battery runs out by shooting the screen every minute with the camera.

As a result of starting to play the movie at 23:26, the battery of Pixel 7a ran out at 14:17 the next day. In other words, I was able to play YouTube continuously for 14 hours and 51 minutes.

Pixel 7 ran out of battery at exactly 16 o'clock. Continuous operation time is 16 hours 34 minutes.

Next, in order to verify the battery charging speed, the Pixel 7a and Pixel 7 that have run out of battery are charged with a USB PD compatible charger '

Anker 511 Charger (Nano 3, 30W) ' that can supply up to 30W, and every 15 minutes I checked the remaining battery power.

In the graph below, the horizontal axis shows the elapsed time and the vertical axis shows the remaining battery capacity. Since Pixel 7 (red line) is officially appealing for fast charging support, it can be charged faster than Pixel 7a (blue line). Still, the Pixel 7a was able to charge from 2% remaining battery to 41% in 30 minutes and 93% in 90 minutes, so there seems to be no problem in practice.

◆3: Check temperature change at high load
In order to check the temperature change under high load, I tried continuously shooting 4K 60fps movies with Pixel 7a and Pixel 7 leaning against the wall.

I was thinking 'Let's measure the temperature after shooting for about an hour', but when Pixel 7 passed 17 minutes and 18 seconds, the movie shooting was forcibly terminated due to high fever. As a result of measuring the temperature at the time the movie shooting stopped with the infrared thermography '

FLIR ONE ', the temperature around the camera bar had risen to 48.2 degrees.

Pixel 7a succeeded in shooting 4K for 1 hour without any problems. After 1 hour, the temperature around the camera bar was 42.6 degrees.

◆ 4: Summary
As a result of comparing and verifying the performance of Pixel 7a and Pixel 7, it was found that Pixel 7a has weak points such as ``lower benchmark score'', ``shorter battery duration'', and ``slow battery charging speed'' compared to Pixel 7. . On the other hand, Pixel 7a has many advantages such as ``small body'', ``easy to hold because the rear camera bar is small'', ``capable of shooting a wide range'', and ``capable of shooting 4K movies for a long time''.

The Pixel 7 may be more attractive for those who prefer a slightly longer battery life or who value benchmark scores, but the Pixel 7a is about 20,000 yen cheaper than the Pixel 7. It is a terminal that can be recommended for a wide range of users because it has overwhelming advantages such as a small protrusion on the back and the ability to shoot 4K movies for a long time.

in Review,   Mobile,   Hardware, Posted by log1o_hf