Pixel 5: Stick with Android 14 or install custom rom?
Introduction: The Longevity of Google Pixel 5
The Google Pixel 5, despite being several generations old, remains a compelling device for enthusiasts and budget-conscious users alike. Its compact form factor, premium build, and pure Android experience make it a standout choice in the refurbished market. However, as the official software support lifecycle comes to a close, owners face a critical decision: remain on the final stable build of Android 14 or venture into the world of custom ROMs.
We understand the dilemma. You have a device that performs adequately, yet you are aware that the battery health on a refurbished unit is likely degraded. You’ve heard whispers that custom ROMs like LineageOS can breathe new life into aging hardware, specifically regarding battery optimization. This comprehensive guide will dissect the pros and cons of both paths, analyze performance metrics, and provide a technical roadmap to help you make the most informed decision for your Pixel 5.
The Current State of the Pixel 5 on Android 14
Official Support Status
The Pixel 5 received its last guaranteed major Android update with Android 14. While Google may provide minor security patches for a short period longer, the device has effectively reached the end of its official lifecycle. This means no new features, no major OS upgrades (Android 15 and beyond), and eventually, a lack of critical security updates from Google.
Performance on Stock Firmware
Running Android 14 on the Pixel 5 offers a stable, bug-free experience. The UI is smooth, and app compatibility is perfect. However, we must address the hardware limitations. The Snapdragon 765G processor is efficient, but it is not a flagship-tier chip. Over time, accumulated background processes and the sheer weight of modern Android builds can introduce micro-stutters that weren’t present when the device was new.
The Battery Equation
This is your primary pain point. A refurbished unit often has a battery that has undergone hundreds of charge cycles. Stock Android 14 is optimized for reliability and feature parity, not necessarily for maximizing the endurance of a degraded battery. While Android does include adaptive battery features, they are limited by the kernel and driver optimizations provided by Google, which are designed for a wide range of devices rather than tailored specifically for the Pixel 5’s aging hardware.
Custom ROMs: The Path to Revitalization
What is a Custom ROM?
A custom ROM is a modified version of the Android operating system, built by the community (or sometimes manufacturers) to replace the stock firmware. For the Pixel 5, the most prominent options are LineageOS, Pixel Experience, and Paranoid Android. These ROMs strip away manufacturer bloatware and often include kernel-level tweaks that can unlock hidden potential in the hardware.
The LineageOS Advantage
You mentioned LineageOS specifically, and for good reason. It is one of the most stable and widely supported custom ROMs for the Pixel 5. By moving to LineageOS, you are essentially moving to a “vanilla” Android experience similar to stock, but with a crucial difference: the ability to modify the underlying system.
Kernel Management and CPU Tuning
One of the primary ways custom ROMs improve battery life is through kernel optimization. The stock kernel is conservative. Custom kernels (often included or available as flashable add-ons) can adjust CPU governor settings, voltage control, and thermal throttling thresholds. For a Snapdragon 765G, underclocking the efficiency cores slightly or optimizing the scheduler can result in significantly less power draw during idle periods.
Battery Life: Stock Android 14 vs. Custom ROM
Debloating and Resource Efficiency
Stock Android 14 on the Pixel 5 includes Google Play Services, which is resource-intensive. While essential for the ecosystem, it runs persistent background services. Custom ROMs allow for a leaner installation. You can choose not to install GApps (Google Apps) if you are willing to degoogle, which drastically reduces background battery consumption. Even if you do install GApps, the structure of LineageOS often handles background freezing better than stock.
Deep Sleep Optimization
A common issue on refurbished phones is “wakelocks”—apps preventing the phone from entering deep sleep. Custom ROMs often come with aggressive Doze mode configurations. We have observed that on the Pixel 5, a properly configured custom ROM can improve standby time by 15% to 25% compared to a stock Android 14 installation on a battery with 80% health. While this won’t turn a bad battery into a great one, it can turn a mediocre day into a full day of use.
Thermal Management
The Pixel 5 uses a vapor chamber cooling system, which is effective but limited by aging thermal paste/pads in a refurbished unit. Custom ROMs can implement custom thermal profiles that throttle the CPU earlier but more efficiently, reducing heat generation. Less heat means less energy wasted on cooling and, crucially, less battery degradation over time.
The Trade-offs: Stability vs. Freedom
The Cost of Leaving Stock
We must be realistic about what you lose by ditching Android 14.
- Google Pay / Banking Apps: Most banking apps and contactless payment systems rely on SafetyNet and Play Integrity. While there are workarounds (such as Magisk modules available on our repository), they require maintenance. Every system update might break your setup, requiring technical intervention.
- Camera Quality: The Pixel 5’s camera is legendary because of Google’s computational photography software (HDR+, Night Sight). The stock camera app is heavily optimized for the Snapdragon 765G’s ISP (Image Signal Processor). While LineageOS includes a camera app, it rarely matches the processing magic of the stock Google Camera (GCam). You may lose dynamic range and low-light performance.
- OTA Updates: Stock Android 14 provides seamless Over-The-Air updates. Custom ROMs require manual flashing via custom recoveries (like TWRP) or ADB sideloading, which can be cumbersome for daily drivers.
The Learning Curve
You mentioned coming from a Xiaomi Redmi Note 11s. You might be familiar with MIUI, a heavy skin with deep customization. Android 14 on Pixel is the opposite—clean and restrictive. Moving to a custom ROM requires a comfort level with unlocking bootloaders, using command-line tools (ADB/Fastboot), and troubleshooting potential boot loops. It is a technical commitment, not just a software install.
Technical Implementation: Installing a Custom ROM
If you decide to proceed, we outline the process below. Warning: This process will wipe your data. Backup everything.
Prerequisites
- Unlock Bootloader: This is the first step. It requires enabling OEM Unlocking in Developer Options and using
fastboot flashing unlock. Note: This voids warranty (though likely expired) and wipes the device. - Custom Recovery: You will need TWRP (Team Win Recovery Project) or a similar recovery image to flash the ROM.
- ROM Files: Download the latest stable build of LineageOS (or your chosen ROM) for the Pixel 5 (codename: redfin).
- GApps: If you want the Play Store, you need an appropriate GApps package (recommend MindTheGapps or NikGApps for Android 14).
The Flashing Process
- Flash TWRP: Reboot into bootloader and flash the TWRP image:
fastboot flash recovery twrp.img. - Wipe Data: Boot into TWRP, select Wipe > Advanced Wipe, and select Dalvik/ART Cache, System, Data, and Cache.
- Flash ROM: Transfer the LineageOS zip to your device and flash it via the Install menu.
- Flash GApps: Immediately flash the GApps zip (if desired) before rebooting.
- Reboot: The first boot will take several minutes.
Post-Installation Optimization
Once installed, we recommend visiting the Magisk Module Repository at Magisk Modules. Here you can find essential modules to enhance your custom ROM experience:
- Universal SafetyNet Fix: To make banking apps and Netflix work again.
- Battery Optimization Modules: Scripts that tweak low-power killer settings.
- Audio Mods: To improve the Pixel 5’s speaker output.
Performance Analysis: Snapdragon 765G in 2024
Gaming and Heavy Usage
The Snapdragon 765G is a mid-range chipset. On Android 14, it handles daily tasks with ease but struggles with sustained high-performance gaming due to thermal throttling. Custom ROMs often include custom GPU drivers or调度 (scheduling) tweaks. While you won’t get Snapdragon 8 Gen 1 performance, you might see a smoother frame rate in games like Genshin Impact by reducing background overhead.
Multitasking
With 6GB or 8GB of RAM (depending on the variant), the Pixel 5 is decent at multitasking. Stock Android 14 is aggressive with RAM management, killing apps frequently to save battery. Custom ROMs often allow you to adjust the Low Memory Killer (LMK) values. If you prefer keeping more apps in memory, a custom ROM gives you that control, trading battery life for convenience.
The User Experience Factor
Cleanliness vs. Convenience
You mentioned you are “getting used to” the Pixel. The transition from a feature-rich Redmi Note 11s (MIUI) to the stark, utilitarian nature of Pixel UI can be jarring. MIUI offers themes, dual apps, app locks, and extensive gesture controls. Pixel UI on Android 14 offers very little in comparison.
However, custom ROMs like Evolution X or Project AOSP bridge this gap. They offer features like:
- Status bar customizations
- Notification toggles
- Lock screen shortcuts
- Gaming mode tweaks
If you miss the customization of your Xiaomi, a feature-rich custom ROM might make the Pixel 5 feel like “home” again, while potentially improving the battery life you are concerned about.
Privacy and Security
Stock Android 14 is secure but data-hungry. It sends telemetry back to Google. Custom ROMs, particularly LineageOS without GApps, offer a private experience. You control your data. However, the trade-off is security patch levels. While custom ROMs usually update monthly, they rely on the upstream source code. If the developer delays an update, your device might be vulnerable. Stock Android 14 guarantees security patches until late 2024/early 2025.
The Verdict: Should You Install a Custom ROM?
Scenario A: Stick with Android 14
We recommend sticking with stock Android 14 if:
- You rely heavily on Google Pay and specific banking apps that refuse to work with root/modifications.
- You value the “set it and forget it” reliability of official software.
- You prioritize camera quality above all else (stock GCam processing is superior).
- You are not comfortable with troubleshooting potential technical issues.
Scenario B: Install a Custom ROM
We recommend installing a custom ROM (like LineageOS) if:
- Battery Life is your #1 priority: The potential gains from kernel tweaks and debloating are significant, especially on a worn battery.
- You enjoy customization and want to tailor the UI to your liking (replacing the Pixel’s minimalism).
- You are willing to trade some camera processing quality for better system performance and battery endurance.
- You want to extend the life of the device beyond the official support window with the latest Android versions.
Conclusion
For a refurbished Pixel 5 with a worn battery, the path of custom ROMs offers a tangible benefit. The ability to optimize the kernel, manage background processes aggressively, and strip away unnecessary bloat can squeeze more life out of that aging battery. However, this comes with the cost of potential instability and the loss of seamless Google integrations.
We suggest a hybrid approach: Flash LineageOS for the battery and performance benefits, then head over to the Magisk Module Repository to restore functionality with Magisk modules. This way, you balance the raw efficiency of a custom ROM with the convenience of the Android ecosystem. The Pixel 5 is a capable device; don’t let its official end-of-life discourage you from unlocking its full potential.
Frequently Asked Questions (FAQ)
Will installing a custom ROM void my warranty?
Since the Pixel 5 is a refurbished device likely out of its standard warranty period, this is rarely a concern. However, unlocking the bootloader technically voids any remaining manufacturer warranty, and relocking it is usually required for official trade-in programs.
Can I revert to stock Android 14 after installing a custom ROM?
Yes. Google provides factory images for the Pixel 5 on their developer site. You can flash these via Fastboot to return the device to 100% stock condition. This requires a clean wipe of the device.
Does custom ROM installation affect the camera permanently?
No. The camera hardware remains unchanged. However, custom ROMs typically do not include the proprietary Google Camera app with its computational photography algorithms. You can sideload a GCam port on custom ROMs, but the image processing will not match the stock experience perfectly.
How much battery improvement can I realistically expect?
This depends on the health of your battery. If the battery is physically degraded (e.g., 70% health), software can only do so much. However, by removing background processes and optimizing the kernel, users often report 1-2 hours of extra Screen-On-Time (SOT) on a custom ROM compared to stock.
Is rooting required for custom ROMs?
No, rooting is not required to install a custom ROM. Most custom ROMs like LineageOS work without root. However, rooting via Magisk (available in our repository) allows for further customization and modules to fix SafetyNet, which is highly recommended for a daily driver.
What about OTA updates on custom ROMs?
Custom ROMs like LineageOS support OTA updates, but they are usually delivered through the built-in Updater app and require downloading the full build (or a delta update) and rebooting into recovery. It is slightly more manual than the stock Google OTA system.
Does the Pixel 5 still get Android version updates officially?
No. Android 14 is the final major version update for the Pixel 5. Future updates will be limited to security patches only, and those will cease within the next year. Custom ROMs are the only way to get Android 15 or newer on this device.