vivo Y15a vs vivo Y91: A Detailed Comparison

Looking for an affordable smartphone that doesn't compromise too much? The vivo Y15a and Y91 are popular contenders in the budget segment. But which one offers the best value? We'll dive deep into their specs and features to help you decide.
Phones Images

🏆 Quick Verdict

The vivo Y91 generally edges out the Y15a thanks to its slightly more responsive performance and potentially better software support. However, the Y15a's reverse charging capability is a unique selling point. Ultimately, the best choice depends on your priorities and budget.

PHONES
Phone Names vivo Y15a vivo Y91
Network
2G bandsGSM 850 / 900 / 1800 / 1900GSM 850 / 900 / 1800 / 1900
3G bandsHSDPA 850 / 900 / 2100HSDPA 850 / 900 / 2100
4G bands1, 3, 5, 8, 28, 38, 40, 411, 3, 5, 40, 41
SpeedHSPA, LTEHSPA 42.2/5.76 Mbps, LTE Cat5 150/75 Mbps
TechnologyGSM / HSPA / LTEGSM / HSPA / LTE
Launch
Announced2021, November 152018, November. Released 2018, November
StatusAvailable. Released 2021, November 15Discontinued
Body
BuildGlass front, plastic back, plastic frameGlass front, plastic back, plastic frame
Dimensions164 x 75.2 x 8.3 mm (6.46 x 2.96 x 0.33 in)155.1 x 75.1 x 8.3 mm (6.11 x 2.96 x 0.33 in)
SIMNano-SIM + Nano-SIMNano-SIM + Nano-SIM
Weight179 g (6.31 oz)163.5 g (5.78 oz)
Display
Resolution720 x 1600 pixels, 20:9 ratio (~270 ppi density)720 x 1520 pixels, 19:9 ratio (~270 ppi density)
Size6.51 inches, 102.3 cm2 (~83.0% screen-to-body ratio)6.22 inches, 96.6 cm2 (~82.9% screen-to-body ratio)
TypeIPS LCDIPS LCD
Platform
CPUOcta-core (4x2.3 GHz Cortex-A53 & 4x1.8 GHz Cortex-A53)Octa-core (4x1.95 GHz Cortex-A53 & 4x1.45 GHz Cortex A53)
ChipsetMediatek MT6765 Helio P35 (12 nm)Qualcomm SDM439 Snapdragon 439 (12 nm)
GPUPowerVR GE8320Adreno 505
OSAndroid 11, Funtouch 11.1Android 8.1 (Oreo), Funtouch 4.5
Memory
Card slotmicroSDXC (dedicated slot)microSDXC (dedicated slot)
Internal64GB 4GB RAM16GB 2GB RAM, 32GB 2GB RAM, 32GB 3GB RAM
 eMMC 5.1eMMC 5.1
Main Camera
Dual13 MP, f/2.2, 27mm (wide), AF Auxiliary lens13 MP, f/2.2, PDAF Auxiliary lens
FeaturesLED flash, panoramaLED flash, panorama
Single8 MP, f/2.0-
Video1080p@30fps1080p@30fps
Selfie camera
Single8 MP, f/2.08 MP, f/1.8
Video1080p@30fps1080p@30fps
Sound
3.5mm jack YesYes
35mm jackYesYes
Loudspeaker YesYes
Comms
Bluetooth5.0, A2DP, LE4.2, A2DP, LE
NFCNoNo
PositioningGPS, GLONASS, GALILEO, BDSGPS, GLONASS, BDS
RadioFM radioFM radio
USBmicroUSB 2.0, OTGmicroUSB 2.0, OTG
WLANWi-Fi 802.11 b/g/n, Wi-Fi DirectWi-Fi 802.11 b/g/n, Wi-Fi Direct
Features
SensorsFingerprint (side-mounted), accelerometer, proximity, compassFingerprint (rear-mounted), accelerometer, proximity, compass
Battery
Charging10W wired 5W reverse wired-
Type5000 mAh4030 mAh, non-removable
Misc
ColorsWave Green, Mystic BlueStarry Black, Ocean Blue
ModelsV21341816, 1817, 1820, 1811, PD1818BF_EX
PriceAbout 140 EURAbout 200 EUR
SAR-1.28 W/kg (head)     0.61 W/kg (body)

vivo Y15a

  • Reverse wired charging
  • Slightly newer chipset (Helio P35)
  • Decent battery life

  • Lower performance compared to Y91
  • Potentially shorter software support
  • HD+ display resolution

vivo Y91

  • Better overall performance (Snapdragon 439)
  • Potentially longer software support
  • Good battery life

  • No reverse charging
  • HD+ display resolution
  • Can feel slightly dated

Display Comparison

Both phones feature a 6.3-inch HD+ (720 x 1544 pixels) IPS LCD display. While the resolution is the same, the Y91 might offer slightly better color accuracy and viewing angles due to potentially better panel calibration. However, the difference is likely to be subtle.

Camera Comparison

The vivo Y15a typically features a 13MP main camera and a 2MP depth sensor, while the Y91 often has a 13MP main camera and a 2MP depth sensor as well. Image quality is comparable in good lighting conditions, but the Y91 might have a slight edge in low-light performance due to potentially better image processing algorithms. Both phones offer a front-facing camera around 5MP for selfies.

Performance

The vivo Y91, powered by the Snapdragon 439, generally performs better than the Y15a's Helio P35. The Snapdragon chipset often exhibits better efficiency and responsiveness in everyday tasks and light gaming. The Y15a's chipset is adequate for basic usage but may struggle with more demanding applications.

Battery Life

Both phones pack a 5000mAh battery, promising all-day battery life. However, the Y91's more efficient Snapdragon chipset could translate to slightly better real-world battery performance. The Y15a's unique selling point is its 5W reverse wired charging, allowing it to charge other devices.

Buying Guide

The vivo Y15a is ideal for users prioritizing reverse charging and a slightly newer chipset, even if the performance difference is minimal. The vivo Y91 is a better choice for those seeking a smoother overall experience and potentially longer software updates, especially if price is a significant factor.

Frequently Asked Questions

❓ Which phone is better for gaming?
The vivo Y91 is generally better for gaming due to its more powerful Snapdragon 439 chipset. While neither phone is a gaming powerhouse, the Y91 will handle lighter games more smoothly.
❓ Does the vivo Y15a get software updates regularly?
Software update support for both phones is limited. However, the vivo Y91, being slightly newer, might receive updates for a marginally longer period.