vivo S15e vs. vivo Y77e (t1): A Detailed Comparison for Smart Buyers

vivo's mid-range lineup presents a compelling choice for budget-conscious consumers. The vivo S15e and Y77e (t1) both aim to deliver a solid smartphone experience, but they diverge significantly in their approach. The S15e prioritizes performance and convenience with its faster charging and more powerful chipset, while the Y77e (t1) focuses on affordability. This comparison will dissect the key differences to help you determine which device best suits your needs.
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🏆 Quick Verdict

For most users, the vivo S15e is the superior choice. Its Exynos 1080 chipset delivers noticeably better performance, and the 66W fast charging is a game-changer. However, if budget is the absolute primary concern, the Y77e (t1) offers a functional experience at a lower price point.

PHONES
Phone Names vivo Y77e (t1) vivo S15e
Network
2G bandsGSM 850 / 900 / 1800 / 1900GSM 850 / 900 / 1800 / 1900
3G bandsHSDPA 850 / 900 / 2100HSDPA 850 / 900 / 1700(AWS) / 2100
4G bands1, 3, 5, 8, 28, 34, 38, 39, 40, 411, 3, 4, 5, 8, 28, 34, 38, 39, 40, 41
5G bands1, 5, 8, 28, 41, 77, 78 SA/NSA1, 5, 8, 28, 41, 77, 78 SA/NSA
SpeedHSPA, LTE, 5GHSPA, LTE, 5G
TechnologyGSM / CDMA / HSPA / CDMA2000 / LTE / 5GGSM / CDMA / HSPA / CDMA2000 / LTE / 5G
 CDMA2000 1x CDMA2000 1x
Launch
Announced2022, August 192022, April 25
StatusCancelledAvailable. Released 2022, April 30
Body
BuildGlass front, plastic frame, plastic back-
Dimensions164 x 75.8 x 8.3 mm (6.46 x 2.98 x 0.33 in)159.7 x 73.6 x 8.5 mm (6.29 x 2.90 x 0.33 in)
SIMNano-SIM + Nano-SIMNano-SIM + Nano-SIM
Weight194 g (6.84 oz)190 g (6.70 oz)
Display
Resolution1080 x 2408 pixels, 20:9 ratio (~401 ppi density)1080 x 2404 pixels, 20:9 ratio (~409 ppi density)
Size6.58 inches, 104.3 cm2 (~83.9% screen-to-body ratio)6.44 inches, 100.0 cm2 (~85.1% screen-to-body ratio)
TypeIPS LCDAMOLED, 90Hz, HDR10+
Platform
CPUOcta-core (2x2.4 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55)Octa-core (1x2.8 GHz Cortex-A78 & 3x2.6 GHz Cortex-A78 & 4x2.0 GHz Cortex-A55)
ChipsetMediatek Dimensity 810 (6 nm)Exynos 1080 (5 nm)
GPUMali-G57 MC2Mali-G78 MP10
OSAndroid 12, OriginOS OceanAndroid 11, OriginOS Ocean
Memory
Card slotmicroSDXC (uses shared SIM slot)No
Internal256GB 8GB RAM128GB 8GB RAM, 256GB 8GB RAM, 256GB 12GB RAM
 UFS 2.2UFS 3.1
Main Camera
Dual50 MP, f/1.8, (wide), PDAF 2 MP (macro)-
FeaturesLED flash, HDR, panoramaLED flash, HDR, panorama
Single8 MP, f/2.0, (wide)16 MP, f/2.0, (wide)
Triple-50 MP, f/1.8, 26mm (wide), PDAF 8 MP, f/2.2, (ultrawide) 2 MP (macro)
Video1080p@30fps4K@30fps, 1080p@30fps, gyro-EIS
Selfie camera
Single8 MP, f/2.0, (wide)16 MP, f/2.0, (wide)
Video1080p@30fps1080p@30fps
Sound
3.5mm jack YesNo
35mm jackYesNo
Loudspeaker YesYes
 -24-bit/192kHz audio
Comms
Bluetooth5.1, A2DP, LE, aptX HD5.2, A2DP, LE, aptX HD
NFCNoYes
PositioningGPS, GLONASS, GALILEO, BDS, QZSSGPS, GLONASS, GALILEO, BDS, QZSS
RadioNoNo
USBUSB Type-C 2.0, OTGUSB Type-C, OTG
WLANWi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi DirectWi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
Features
SensorsFingerprint (side-mounted), accelerometer, proximity, compassFingerprint (under display, optical), accelerometer, gyro, proximity, compass
Battery
Charging18W wired66W wired, 50% in 18 min
Type5000 mAh4700 mAh
Misc
ColorsBlack, Blue gradient, PinkBlack, Blue, Silver/Pink
ModelsV2166BAV2190A
PriceAbout 260 EURAbout 300 EUR

vivo Y77e (t1)

  • More affordable price point
  • Decent performance for basic tasks
  • Functional and reliable

  • Significantly slower charging
  • Less powerful processor
  • Likely lower quality display

vivo S15e

  • Faster and more powerful Exynos 1080 chipset
  • 66W fast charging for quick top-ups
  • Potentially better display quality

  • Higher price tag
  • May not offer a dramatically longer battery life
  • Potential for slightly more heat under heavy load

Display Comparison

While both phones likely feature LCD panels (based on market positioning), the display specifications aren't provided. However, the S15e's higher price point suggests a potentially brighter panel and more accurate color calibration. The absence of information on refresh rates is notable; the S15e, being a more premium model, is more likely to feature a 90Hz or 120Hz display for smoother scrolling and animations. Bezels are also likely to be slimmer on the S15e, contributing to a more immersive viewing experience.

Camera Comparison

Without detailed camera specifications, a direct comparison is difficult. However, the S15e, positioned as a more feature-rich device, likely incorporates a more capable main sensor and potentially optical image stabilization (OIS). The Y77e (t1) likely relies on a more basic camera setup. The presence of a 2MP macro camera on either device is largely inconsequential; these sensors typically produce low-quality images. Image processing algorithms will also differ, with the S15e likely offering more sophisticated scene recognition and image enhancement features.

Performance

The core difference lies in the chipsets. The vivo S15e's Exynos 1080, fabricated on a 5nm process, offers a significant advantage over the Y77e (t1)'s Mediatek Dimensity 810 (6nm). The Exynos 1080 boasts a more powerful prime core (2.8 GHz Cortex-A78) and a more efficient architecture. This translates to faster application launches, smoother multitasking, and improved gaming performance. The Dimensity 810 is still capable for everyday tasks, but will struggle with graphically intensive games or demanding applications. The 5nm process of the Exynos 1080 also contributes to better thermal efficiency, reducing the likelihood of throttling during sustained workloads.

Battery Life

The battery capacity isn't specified for either device. However, the charging speed is a major differentiator. The S15e's 66W wired charging is a substantial upgrade over the Y77e (t1)'s 18W charging. The S15e can reportedly reach 50% charge in just 18 minutes, significantly reducing downtime. While a larger battery capacity on the Y77e (t1) might offer slightly longer overall battery life, the S15e's faster charging will likely be more convenient for most users. The faster charging also mitigates the impact of any potential battery capacity difference.

Buying Guide

Buy the vivo Y77e (t1) if you need a reliable smartphone for basic tasks like calling, texting, and light social media use, and your budget is extremely limited. You'll be sacrificing performance and convenience for cost savings. Buy the vivo S15e if you prioritize smoother multitasking, faster app loading times, and significantly quicker charging, and are willing to spend a bit more for a more refined experience. This phone is ideal for users who enjoy mobile gaming or frequently use demanding applications.

Frequently Asked Questions

❓ Does the Exynos 1080 in the vivo S15e tend to overheat during prolonged gaming sessions?
The Exynos 1080 is generally well-managed in terms of thermals. While it can get warm during extended gaming, the 5nm process helps to mitigate overheating and prevent significant performance throttling. The vivo S15e likely incorporates thermal management solutions to further optimize cooling.
❓ Is the 18W charging on the vivo Y77e (t1) realistically usable, or is it painfully slow?
18W charging is relatively slow by today's standards. Expect a full charge to take well over two hours. It's sufficient for overnight charging, but not ideal if you need a quick top-up before leaving the house. This is a major trade-off for the lower price.
❓ How does the Dimensity 810 handle popular games like PUBG Mobile and Call of Duty Mobile?
The Dimensity 810 can run PUBG Mobile and Call of Duty Mobile, but you'll likely need to lower the graphics settings to achieve a consistently smooth frame rate. Expect some occasional stuttering during intense firefights. The Exynos 1080 in the S15e will provide a significantly better gaming experience with higher and more stable frame rates.
❓ Are there any significant software differences between the two devices?
Both devices likely run vivo's Funtouch OS, based on Android. While the core experience will be similar, the S15e may receive software updates for a longer period due to its higher price point and more recent release.