Oppo A5 Pro 4G vs. vivo V21 5G: A Battery Life and Performance Showdown

The Oppo A5 Pro 4G and vivo V21 5G represent distinct approaches to the mid-range smartphone market. The A5 Pro prioritizes exceptional battery endurance, while the V21 5G aims for a balance of 5G connectivity and multimedia capabilities. This comparison dissects their key differences to help you choose the right device for your needs.
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🏆 Quick Verdict

For users prioritizing longevity and reliable performance, the Oppo A5 Pro 4G emerges as the winner. Its staggering 57:26h endurance and 1600 charge cycles significantly outperform the vivo V21 5G’s 123h rating, making it ideal for heavy users and those frequently away from a charger.

PHONES
Phone Names Oppo A5 Pro 4G vivo V21 5G
Network
2G bandsGSM 850 / 900 / 1800 / 1900GSM 850 / 900 / 1800 / 1900
3G bandsHSDPA 850 / 900 / 2100 - InternationalHSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands1, 3, 5, 7, 8, 20, 28, 38, 40, 41 - International1, 2, 3, 4, 5, 8, 34, 38, 40, 41 - India
5G bands-78 Sub6 - India
SpeedHSPA, LTEHSPA, LTE, 5G
TechnologyGSM / HSPA / LTEGSM / HSPA / LTE / 5G
Launch
Announced2025, March 122021, April 27
StatusAvailable. Released 2025, March 17Available. Released 2021, May 06
Body
Build-Glass front, plastic frame, plastic back
Dimensions164.8 x 75.5 x 7.8 mm (6.49 x 2.97 x 0.31 in)159.7 x 73.9 x 7.3 mm (6.29 x 2.91 x 0.29 in)
SIM· Nano-SIM· Nano-SIM + Nano-SIMNano-SIM + Nano-SIM
Weight194 g (6.84 oz)176 g (6.21 oz)
Display
ProtectionCorning Gorilla Glass 7i or AGC DT-Star D+, Mohs level 4-
Resolution720 x 1604 pixels, 20:9 ratio (~264 ppi density)1080 x 2400 pixels, 20:9 ratio (~409 ppi density)
Size6.67 inches, 107.2 cm2 (~86.2% screen-to-body ratio)6.44 inches, 100.1 cm2 (~84.8% screen-to-body ratio)
TypeIPS LCD, 90Hz, 1000 nits (HBM)AMOLED, 90Hz, HDR10+, 500 nits (typ)
Platform
CPUOcta-core (4x2.1 GHz Cortex-A73 & 4x1.8 GHz Cortex-A53)Octa-core (2x2.4 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55)
ChipsetQualcomm SM-6115 Snapdragon 6s 4G Gen1 (11 nm)Mediatek Dimensity 800U (7 nm)
GPUAdreno 610Mali-G57 MC3
OSAndroid 15, ColorOS 15Android 11, Funtouch 11.1
Memory
Card slotmicroSDXCmicroSDXC (uses shared SIM slot)
Internal128GB 8GB RAM, 256GB 8GB RAM128GB 6GB RAM, 128GB 8GB RAM, 256GB 8GB RAM
 -UFS 2.2
Main Camera
Dual50 MP, f/1.8, (wide), PDAF Auxiliary lens-
FeaturesLED flash, HDR, panoramaLED flash, HDR, panorama
Single-44 MP, f/2.0, (wide), AF, OIS
Triple-64 MP, f/1.8, 26mm (wide), 1/1.72", 0.8µm, PDAF, OIS 8 MP, f/2.2, 120˚, 16mm (ultrawide), 1/4.0", 1.12µm 2 MP (macro)
Video1080p@30/60fps4K@30fps (no OIS), 1080p@30/60fps
Selfie camera
FeaturesPanoramaDual-LED flash, HDR
Single8 MP, f/2.0, (wide)44 MP, f/2.0, (wide), AF, OIS
Video1080p@30fps4K@30fps (no OIS), 1080p@30fps
Sound
3.5mm jack -No
35mm jackNoNo
Loudspeaker Yes, with stereo speakersYes
Comms
Bluetooth5.0, A2DP, LE, aptX5.1, A2DP, LE
NFCYes (market/region dependent)Yes (market/region dependent)
PositioningGPS, GALILEO, GLONASS, BDSGPS, GLONASS, GALILEO, BDS
RadioUnspecifiedNo
USBUSB Type-C 2.0, OTGUSB Type-C 2.0, OTG
WLANWi-Fi 802.11 a/b/g/n/ac, dual-bandWi-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
Charging45W wired, PD33W wired, 63% in 30 min
Type5800 mAh4000 mAh
Misc
ColorsMocha Brown (Mocha Chocolate), Olive Green (Moss Green), Silk Blue (Feather Blue)Dusk Blue, Sunset Dazzle, Arctic White
ModelsCPH2711V2050
PriceAbout 170 EURAbout 190 EUR
SAR-1.05 W/kg (head)     0.87 W/kg (body)
Tests
Battery life- Endurance rating 123h
Camera- Photo / Video
Display- Contrast ratio: Infinite (nominal)
Loudspeaker- -28.2 LUFS (Average)
Performance- AnTuTu: 336699 (v8), 365055 (v9) GeekBench: 6516 (v4.4), 1600 (v5.1) GFXBench: 17fps (ES 3.1 onscreen)
EU LABEL
Battery57:26h endurance, 1600 cycles-
EnergyClass B-
Free fallClass A (270 falls)-
RepairabilityClass B-

Oppo A5 Pro 4G

  • Exceptional battery life (57:26h endurance)
  • High charge cycle count (1600 cycles)
  • Faster 45W PD charging

  • Older Snapdragon 6s Gen 1 chipset
  • Limited display information

vivo V21 5G

  • 5G connectivity
  • Brighter display (761 nits)
  • More powerful Dimensity 800U chipset

  • Significantly shorter battery life (123h endurance)
  • Slower 33W charging

Display Comparison

The vivo V21 5G boasts a brighter display, peaking at 761 nits, which will provide better visibility outdoors compared to the Oppo A5 Pro 4G (brightness data unavailable). While the V21 5G’s contrast ratio is listed as ‘Infinite (nominal)’ – typical for OLED panels – the A5 Pro’s display characteristics remain unspecified. This suggests the V21 5G offers a more visually vibrant experience, particularly for video streaming and gaming. However, without knowing the A5 Pro’s panel type or color accuracy, a definitive judgment is difficult.

Camera Comparison

Both devices offer photo and video capabilities, but detailed camera specifications are limited. The absence of sensor size or megapixel counts makes a direct comparison challenging. The V21 5G’s brighter display could aid in composing shots, but image quality ultimately depends on the image signal processor (ISP) within each chipset and software processing. Without further data, it’s reasonable to assume the V21 5G’s more modern chipset may offer slightly more advanced image processing features.

Performance

The vivo V21 5G’s Mediatek Dimensity 800U (7nm) offers a performance advantage over the Oppo A5 Pro 4G’s Qualcomm Snapdragon 6s Gen 1 (11nm). The Dimensity 800U’s Cortex-A76 cores, clocked at 2.4 GHz, are more powerful than the A5 Pro’s Cortex-A73 cores at 2.1 GHz. The 7nm process node also contributes to better power efficiency. This translates to smoother multitasking, faster app loading times, and improved gaming performance on the V21 5G. However, the A5 Pro’s optimized software and potentially more efficient chipset could mitigate some of this difference in real-world usage.

Battery Life

The Oppo A5 Pro 4G dominates in battery endurance with a remarkable 57:26h rating and an impressive 1600 charge cycles. This is more than double the vivo V21 5G’s 123h endurance. While the V21 5G supports 33W charging (reaching 63% in 30 minutes), the A5 Pro’s 45W charging with Power Delivery (PD) is likely faster overall. The A5 Pro’s longevity is further bolstered by its exceptional charge cycle rating, suggesting a longer lifespan before battery degradation becomes noticeable.

Buying Guide

Buy the Oppo A5 Pro 4G if you need a phone that can genuinely last for days on a single charge, and if 5G connectivity isn't a critical requirement. It's perfect for travelers, field workers, or anyone who dislikes daily charging. Buy the vivo V21 5G if you prioritize 5G access for faster data speeds and enjoy a brighter display for media consumption, accepting the trade-off of significantly shorter battery life.

Frequently Asked Questions

❓ How does the Snapdragon 6s Gen 1 handle demanding games like PUBG Mobile on the Oppo A5 Pro 4G?
While the Snapdragon 6s Gen 1 isn't a flagship chipset, it can handle PUBG Mobile at medium settings. Expect playable frame rates, but don't anticipate ultra-smooth performance or maximum graphical fidelity. The focus of the A5 Pro is endurance, not peak gaming performance.
❓ Is the 5G connectivity of the vivo V21 5G worth the trade-off in battery life if I live in an area with good 5G coverage?
If you frequently download large files, stream high-resolution video, or engage in online gaming, the 5G connectivity of the V21 5G could be beneficial. However, be prepared for significantly reduced battery life compared to the A5 Pro 4G. Monitor your usage patterns to determine if the speed boost outweighs the battery drain.
❓ What does the 1600 charge cycle rating mean for the Oppo A5 Pro 4G's long-term battery health?
A 1600 charge cycle rating indicates the battery is designed to retain a significant portion of its original capacity after being fully charged and discharged 1600 times. This suggests the A5 Pro 4G will experience less battery degradation over its lifespan compared to phones with lower cycle ratings.