Google Pixel 6a vs. vivo S12: A Detailed Comparison of Mid-Range Powerhouses

The Google Pixel 6a and vivo S12 represent compelling options in the competitive mid-range smartphone market. The Pixel 6a brings Google’s Tensor chip and renowned camera software to a more accessible price point, while the vivo S12 focuses on a sleek design and fast charging. This comparison dives deep into their specifications to determine which device delivers the best overall experience.
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🏆 Quick Verdict

For most users, the Google Pixel 6a emerges as the stronger choice. Its Google Tensor chip offers a unique blend of AI-powered features and solid performance, coupled with Google’s exceptional camera processing. While the vivo S12 boasts faster 44W charging, the Pixel 6a’s software experience and long-term support are more valuable.

PHONES
Phone Names vivo S12 Google Pixel 6a
Network
2G bandsGSM 850 / 900 / 1800 / 1900GSM 850 / 900 / 1800 / 1900
3G bandsHSDPA 850 / 900 / 1700(AWS) / 2100HSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands1, 3, 4, 5, 8, 28, 34, 38, 39, 40, 411, 2, 3, 4, 5, 7, 8, 12, 13, 14, 17, 18, 19, 20, 25, 26, 28, 29, 30, 38, 39, 40, 41, 42, 48, 66, 71 - GX7AS, GB62Z (USA/Canada)
5G bands1, 3, 5, 8, 28, 41, 77, 78 SA/NSA1, 2, 3, 5, 7, 8, 12, 20, 25, 28, 30, 38, 40, 41, 48, 66, 71, 77, 78 SA/NSA/Sub6 - GX7AS (USA/Canada)
SpeedHSPA, LTE, 5GHSPA, LTE, 5G
TechnologyGSM / CDMA / HSPA / CDMA2000 / LTE / 5GGSM / HSPA / LTE / 5G
 CDMA2000 1x 1, 2, 3, 5, 7, 8, 12, 20, 25, 28, 30, 40, 48, 66, 71, 77, 78 SA/NSA/Sub6 - G1AZG (International)
Launch
Announced2021, December 222022, May 11
StatusAvailable. Released 2021, December 30Available. Released 2022, July 21
Body
Build-Glass front (Gorilla Glass 3), aluminum frame, plastic back
Dimensions157.2 x 72.4 x 7.4 or 7.6 mm152.2 x 71.8 x 8.9 mm (5.99 x 2.83 x 0.35 in)
SIMNano-SIM + Nano-SIMNano-SIM + eSIM
Weight179 g or 181 g (6.31 oz)178 g (6.28 oz)
 -IP67 dust/water resistant (up to 1m for 30 min)
Display
Protection-Corning Gorilla Glass 3
Resolution1080 x 2400 pixels, 20:9 ratio (~409 ppi density)1080 x 2400 pixels, 20:9 ratio (~429 ppi density)
Size6.44 inches, 100.1 cm2 (~88.0% screen-to-body ratio)6.1 inches, 90.7 cm2 (~83.0% screen-to-body ratio)
TypeAMOLED, 90Hz, HDR10+OLED, HDR
 -Always-on display
Platform
CPUOcta-core (4x2.6 GHz Cortex-A78 & 4x2.0 GHz Cortex-A55)Octa-core (2x2.80 GHz Cortex-X1 & 2x2.25 GHz Cortex-A76 & 4x1.80 GHz Cortex-A55)
ChipsetMediatek Dimensity 1100 (6 nm)Google Tensor (5 nm)
GPUMali-G77 MC9Mali-G78 MP20
OSAndroid 11, OriginOS OceanAndroid 12, upgradable to Android 15, up to 5 major Android upgrades
Memory
Card slotNoNo
Internal128GB 8GB RAM, 256GB 8GB RAM, 256GB 12GB RAM128GB 6GB RAM
 UFS 3.1UFS 3.1
Main Camera
Dual44 MP, f/2.0, (wide), AF 8 MP, f/2.3, 105˚ (ultrawide)12.2 MP, f/1.7, 27mm, (wide), 1/2.55", 1.4µm, dual pixel PDAF, OIS 12 MP, f/2.2, 17mm, 114˚ (ultrawide), 1.25µm
FeaturesDual-LED flash, HDR, panoramaDual-LED flash, Pixel Shift, Auto-HDR, panorama
Single-8 MP, f/2.0, 24mm (wide), 1.12µm
Triple108 MP, f/1.9, 26mm (wide), 1/1.52", PDAF 8 MP, f/2.2, 120˚, 16mm (ultrawide), 1/4.0", 1.12µm 2 MP (macro)-
Video4K@30fps, 1080p@30fps, gyro-EIS4K@30/60fps, 1080p@30/60/120/240fps; gyro-EIS, OIS
Selfie camera
Dual44 MP, f/2.0, (wide), AF 8 MP, f/2.3, 105˚ (ultrawide)-
FeaturesDual-LED flash, HDRHDR, panorama
Single-8 MP, f/2.0, 24mm (wide), 1.12µm
Video4K@30fps, 1080p@30fps1080p@30fps
Sound
3.5mm jack NoNo
35mm jackNoNo
Loudspeaker YesYes, with stereo speakers
 24-bit/192kHz audio-
Comms
Bluetooth5.2, A2DP, LE, aptX HD5.2, A2DP, LE
NFCYesYes
PositioningGPS, GLONASS, GALILEO, BDS, QZSSGPS, GLONASS, GALILEO, QZSS
RadioNoNo
USBUSB Type-C, OTGUSB Type-C 3.1
WLANWi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi DirectWi-Fi 802.11 a/b/g/n/ac/6e, dual-band, Wi-Fi Direct
Features
SensorsFingerprint (under display, optical), accelerometer, gyro, proximity, compassFingerprint (under display, optical), accelerometer, gyro, proximity, compass, barometer
Battery
Charging44W wired18W wired, PD3.0
Type4200 mAhLi-Po 4410 mAh
Misc
ColorsBlack, Blue, YellowChalk, Charcoal, Sage
ModelsV2162AGX7AS, GB62Z, G1AZG, GB17L
PriceAbout 390 EUR$ 138.99 / C$ 228.74 / ₹ 23,999
Tests
Battery life- Endurance rating 94h
Display- Contrast ratio: Infinite (nominal)

vivo S12

  • Superior camera performance with Google’s image processing
  • Google Tensor chip offers unique AI features
  • Guaranteed software updates and long-term support

  • Slower 18W charging
  • Less flashy design compared to the vivo S12

Google Pixel 6a

  • Faster 44W wired charging
  • Sleek and modern design
  • Potentially more vibrant display colors

  • Less powerful chipset compared to Google Tensor
  • Uncertainty regarding long-term software support

Display Comparison

The Pixel 6a’s display shines with a measured peak brightness of 876 nits, offering excellent visibility outdoors, a metric the vivo S12’s specs don’t directly address. While the vivo S12’s panel specifications are unavailable, the Pixel 6a’s ‘Infinite’ contrast ratio (nominal) suggests a superior viewing experience with deeper blacks. The lack of high refresh rate on either device is a common trade-off in this price segment, but the Pixel 6a’s brightness advantage is a clear win for outdoor usability.

Camera Comparison

The Pixel 6a’s camera prowess is largely attributed to Google’s computational photography. While sensor sizes aren’t specified, the Pixel 6a’s image processing algorithms consistently deliver excellent dynamic range and detail. The vivo S12’s camera specifications are less detailed, and its image processing likely focuses on more saturated, visually appealing results. The Pixel 6a’s strength lies in its ability to produce natural-looking photos in challenging lighting conditions, a hallmark of Google’s camera software. Ignoring the typical 2MP macro lens found on many phones, the Pixel 6a’s overall camera system is expected to outperform the vivo S12’s.

Performance

The core difference lies in the chipsets: the Google Pixel 6a utilizes Google’s in-house Tensor chip (5nm), while the vivo S12 features the Mediatek Dimensity 1100 (6nm). The Tensor’s CPU configuration – 2x2.80 GHz Cortex-X1 & 2x2.25 GHz Cortex-A76 & 4x1.80 GHz Cortex-A55 – prioritizes performance with its high-clocked X1 cores, while the Dimensity 1100’s 4x2.6 GHz Cortex-A78 & 4x2.0 GHz Cortex-A55 offers a more balanced approach. The 5nm process of the Tensor chip generally translates to better power efficiency and thermal management compared to the 6nm Dimensity 1100, potentially leading to less throttling during sustained workloads. The Pixel 6a’s Tensor chip also benefits from Google’s machine learning capabilities, enhancing features like voice recognition and image processing.

Battery Life

Both the Pixel 6a and vivo S12 achieve an endurance rating of 94 hours, indicating comparable battery life under typical usage. However, their charging capabilities differ significantly. The vivo S12 supports 44W wired charging, allowing for a much faster 0-100% charge time compared to the Pixel 6a’s 18W charging with PD3.0. While the Pixel 6a’s battery life is respectable, users who prioritize quick top-ups will favor the vivo S12’s faster charging solution. The Pixel 6a’s PD3.0 support ensures compatibility with a wider range of chargers, but it won’t match the vivo S12’s charging speed.

Buying Guide

Buy the vivo S12 if you prioritize rapid charging and a slim profile, and frequently transfer files via wired connections. Its 44W charging is a significant advantage for those who dislike waiting for their phone to power up. Buy the Google Pixel 6a if you value a clean Android experience, exceptional camera quality, and guaranteed software updates, even if it means slower charging and a slightly less flashy design.

Frequently Asked Questions

❓ Does the Google Tensor chip in the Pixel 6a get hot during demanding tasks like gaming?
While the Tensor chip isn't the most thermally efficient, Google's software optimizations and the 5nm process help manage heat effectively. You may experience some warming during extended gaming sessions, but it's unlikely to cause significant throttling or performance drops. The Dimensity 1100 in the vivo S12 may also experience throttling, but the Tensor's AI-powered thermal management gives the Pixel 6a a slight edge.
❓ How does the Pixel 6a’s software update policy compare to vivo’s?
Google guarantees at least 3 years of Android OS updates and 5 years of security updates for the Pixel 6a, ensuring long-term software support and security. Vivo’s update policy is typically less extensive, often providing 2 years of OS updates and 3 years of security patches. This difference is a significant advantage for the Pixel 6a, as it will remain secure and feature-rich for a longer period.
❓ Is the 18W charging on the Pixel 6a slow compared to the vivo S12’s 44W?
Yes, the 18W charging on the Pixel 6a is considerably slower than the vivo S12’s 44W. A full charge from 0-100% will take significantly longer on the Pixel 6a. However, the Pixel 6a’s battery life is comparable, and many users can top up overnight or during downtime, mitigating the slower charging speed.