The Google Pixel 9a uses the older Exynos Modem 5300, which is a significant downgrade compared to the Exynos Modem 5400 found in the Pixel 9 series[1][3]. This older modem has been associated with several issues, including poor cellular reception and inefficient power consumption, which can negatively impact battery life[3][6].
Historically, Pixel phones equipped with the Exynos Modem 5300, such as those in the Pixel 6 series, have faced criticism for their subpar battery performance. These devices often experienced rapid battery drain, especially when using cellular data, and had noticeable heating issues[5][6]. The modem's inefficiency can lead to higher standby idle drain, contributing to inconsistent battery life that varies based on network conditions[5].
In contrast, the Exynos Modem 5400 used in the Pixel 9 series offers up to 50% better power consumption compared to its predecessor, which helps improve battery life and reduce heat generation[4][7]. This modem also supports faster download speeds and Release 17 connectivity, enhancing overall performance and efficiency[2][4].
Given these differences, the older modem in the Pixel 9a could potentially lead to less efficient battery performance compared to the Pixel 9 models. However, the Pixel 9a's larger 5,100 mAh battery and the Tensor G4 chipset's improved power management might help mitigate some of these issues[9]. Ultimately, the impact on battery performance will depend on how well Google optimizes the software and hardware to work with the older modem.
Reviews and real-world testing will be crucial in determining the actual impact of the modem on the Pixel 9a's battery life[1][3]. Despite the potential drawbacks, the Pixel 9a remains an attractive option due to its larger battery capacity and competitive pricing[1][9].
Citations:
[1] https://www.androidpolice.com/google-pixel-9a-exynos-modem-5300-downgrade/
[2] https://www.tomsguide.com/phones/google-pixel-phones/google-pixel-9-could-get-better-reception-and-battery-life-all-thanks-to-this-hardware-upgrade
[3] https://www.androidauthority.com/google-pixel-9a-modem-3535985/
[4] https://timesofindia.indiatimes.com/technology/mobiles-tabs/google-pixel-9-series-tensor-g4-chip-may-not-get-major-upgrades/articleshow/112200277.cms
[5] https://www.androidpolice.com/google-pixel-9a-uses-older-exynos-modem-i-wont-be-buying-one/
[6] https://www.reddit.com/r/GooglePixel/comments/1jeysxo/google_confirms_the_pixel_9a_has_a_major/
[7] https://9to5google.com/2024/07/31/google-pixel-9-tensor-g4-modem-leaks/
[8] https://9to5google.com/2024/11/27/pixel-9-long-term-review/
[9] https://www.youtube.com/watch?v=zsH5zH7r6gg
[10] https://www.reddit.com/r/GooglePixel/comments/1hy9ws4/modem_on_the_pixel_9_series_is_a_huuuuuge/
[11] https://www.androidauthority.com/google-pixel-9a-3479179/