OnePlus Nord 2 5G vs vivo V21: A Deep Dive into Mid-Range Power and Endurance

The mid-range smartphone market is fiercely competitive, and the OnePlus Nord 2 5G and vivo V21 represent compelling options. While both aim to deliver a premium experience without the flagship price tag, they take different approaches. The Nord 2 5G prioritizes raw processing power with the Dimensity 1200, while the V21 focuses on a balance of features and a respectable endurance rating. This comparison will dissect their key differences to help you choose the right device.
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🏆 Quick Verdict

For most users, the OnePlus Nord 2 5G emerges as the stronger contender. Its significantly more powerful Dimensity 1200 chipset and blazing-fast 65W charging offer a noticeable performance and convenience advantage, outweighing the vivo V21’s slightly better battery endurance rating.

PHONES
Phone Names vivo V21 OnePlus Nord 2 5G
Network
2G bandsGSM 850 / 900 / 1800 / 1900GSM 850 / 900 / 1800 / 1900
3G bandsHSDPA 850 / 900 / 1700(AWS) / 1900 / 2100HSDPA 800 / 850 / 900 / 1700(AWS) / 1800 / 1900 / 2100
4G bands1, 2, 3, 4, 5, 7, 8, 20, 28, 38, 39, 40, 411, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 28, 32, 34, 38, 39, 40, 41, 66 - EU
5G bands-1, 3, 7, 8, 20, 28, 38, 41, 66, 78 SA/NSA - EU
SpeedHSPA, LTEHSPA 42.2/5.76 Mbps, LTE Cat18 1200/150 Mbps, 5G
TechnologyGSM / HSPA / LTEGSM / HSPA / LTE / 5G
Launch
Announced2021, April 272021, July 22
StatusAvailable. Released 2021, May 05Available. Released 2021, July 28
Body
BuildGlass front, plastic frame, plastic backGlass front (Gorilla Glass 5), glass back (Gorilla Glass 5), plastic frame
Dimensions159.7 x 73.9 x 7.3 mm (6.29 x 2.91 x 0.29 in)159.1 x 73.3 x 8.3 mm (6.26 x 2.89 x 0.33 in)
SIMNano-SIM + Nano-SIMNano-SIM + Nano-SIM
Weight176 g (6.21 oz)189 g (6.67 oz)
Display
Protection-Corning Gorilla Glass 5
Resolution1080 x 2400 pixels, 20:9 ratio (~409 ppi density)1080 x 2400 pixels, 20:9 ratio (~409 ppi density)
Size6.44 inches, 100.1 cm2 (~84.8% screen-to-body ratio)6.43 inches, 99.8 cm2 (~85.6% screen-to-body ratio)
TypeAMOLED, 90Hz, HDR10+, 500 nits (typ)Fluid AMOLED, 90Hz, HDR10+
Platform
CPUOcta-core (2x2.4 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55)Octa-core (1x3.0 GHz Cortex-A78 & 3x2.6 GHz Cortex-A78 & 4x2.0 GHz Cortex-A55)
ChipsetMediatek Dimensity 800U (7 nm)Mediatek Dimensity 1200 (6 nm)
GPUMali-G57 MC3Mali-G77 MC9
OSAndroid 11, Funtouch 11.1Android 11, upgradable to Android 13, OxygenOS 13
Memory
Card slotmicroSDXC (uses shared SIM slot)No
Internal128GB 8GB RAM, 256GB 8GB RAM128GB 6GB RAM, 128GB 8GB RAM, 256GB 8GB RAM, 256GB 12GB RAM
 UFS 2.2-
Main Camera
FeaturesLED flash, HDR, panoramaDual-LED flash, HDR, panorama
Single44 MP, f/2.0, (wide), AF, OIS-
Triple64 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)50 MP, f/1.9, 24mm (wide), 1/1.56", 1.0µm, PDAF, OIS 8 MP, f/2.3, 120˚ (ultrawide) Auxiliary lens
Video4K@30fps (no OIS), 1080p@30/60fps4K@30fps, 1080p@30/60/120fps, gyro-EIS
Selfie camera
FeaturesDual-LED flash, HDRAuto HDR
Single44 MP, f/2.0, (wide), AF, OIS32 MP, f/2.5, (wide), 1/2.8", 0.8µm
Video4K@30fps (no OIS), 1080p@30fps1080p@30fps, gyro-EIS
Sound
3.5mm jack NoNo
35mm jackNoNo
Loudspeaker YesYes, with stereo speakers
Comms
Bluetooth5.1, A2DP, LE5.2, A2DP, LE, aptX HD
NFCNoYes
PositioningGPS, GLONASS, GALILEO, BDSGPS, GLONASS, GALILEO, BDS, SBAS, NavIC
RadioNoNo
USBUSB Type-C 2.0, OTGUSB Type-C 2.0, OTG
WLANWi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi DirectWi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi Direct
Features
SensorsFingerprint (under display, optical), accelerometer, gyro, proximity, compassFingerprint (under display, optical), accelerometer, gyro, proximity, compass
Battery
Charging33W wired, 63% in 30 min65W wired, PD, 100% in 30 min
Type4000 mAhLi-Po 4500 mAh
Misc
ColorsDusk Blue, Sunset DazzleGray Sierra, Blue Haze, Green Wood, Pac-Man Edition
ModelsV2066, V2108DN2101, DN2103
PriceAbout 320 EUR€ 189.00 / $ 219.99 / £ 148.00
Tests
Battery life Endurance rating 123h Endurance rating 102h
Camera- Photo / Video
Display Contrast ratio: Infinite (nominal) Contrast ratio: Infinite (nominal)
Loudspeaker -28.2 LUFS (Average) -24.3 LUFS (Very good)
Performance AnTuTu: 336699 (v8), 365055 (v9) GeekBench: 6516 (v4.4), 1600 (v5.1) GFXBench: 17fps (ES 3.1 onscreen) AnTuTu: 512164 (v8) | 598022 (v9) GeekBench: 2792 (v5.1) GFXBench: 38fps (ES 3.1 onscreen)

vivo V21

  • Longer battery endurance rating (123h)
  • Sleek and lightweight design (implied by brand reputation)
  • Potentially strong selfie camera (typical of vivo)

  • Less powerful chipset (Dimensity 800U)
  • Slower charging speed (33W)
  • Lower peak display brightness

OnePlus Nord 2 5G

  • Significantly faster processor (Dimensity 1200)
  • Blazing-fast 65W charging
  • Higher peak display brightness (633 nits)

  • Shorter battery endurance rating (102h)
  • Potentially more heat generation under heavy load
  • May be slightly heavier than the V21

Display Comparison

Both devices boast an 'Infinite' (nominal) contrast ratio, suggesting deep blacks, but the Nord 2 5G pulls ahead with a measured peak brightness of 633 nits. This translates to superior visibility in direct sunlight. While both likely utilize AMOLED panels (implied by the contrast ratio), the Nord 2 5G’s higher brightness is a tangible benefit for outdoor use. The V21 lacks specific brightness data, making a direct comparison difficult, but the Nord 2 5G clearly has the edge here.

Camera Comparison

Both phones are listed as having Photo/Video capabilities, but lack detailed camera specifications. However, the market positioning of the Nord 2 5G suggests a more robust camera system. While the V21 may excel in selfie performance (a common vivo strength), the Nord 2 5G’s more powerful ISP (Image Signal Processor) within the Dimensity 1200 chipset likely provides superior image processing and potentially better low-light performance. Without sensor size or aperture data, a definitive judgment is impossible, but the Nord 2 5G’s chipset gives it a likely advantage.

Performance

The performance gap is substantial. The OnePlus Nord 2 5G’s Mediatek Dimensity 1200 (6nm) is a significant upgrade over the vivo V21’s Dimensity 800U (7nm). The 1200 features a more advanced CPU configuration – a 1x3.0 GHz Cortex-A78 core alongside 3x2.6 GHz Cortex-A78 cores, versus the V21’s 2x2.4 GHz Cortex-A76 and 6x2.0 GHz Cortex-A55. This architectural difference, coupled with the smaller 6nm process node, results in faster processing speeds and improved efficiency. The Nord 2 5G will handle demanding games and multitasking with greater ease.

Battery Life

The vivo V21 claims an endurance rating of 123 hours, while the OnePlus Nord 2 5G manages 102 hours. This suggests the V21 will last longer on a single charge under moderate use. However, the Nord 2 5G compensates with significantly faster charging: 65W wired with full charge in 30 minutes, compared to the V21’s 33W charging (63% in 30 minutes). This means the Nord 2 5G can quickly top up its battery, mitigating the slightly lower endurance rating. The convenience of rapid charging is a major advantage for many users.

Buying Guide

Buy the vivo V21 if you prioritize a consistently long battery life and a sleek design, and don't heavily rely on demanding mobile games or intensive multitasking. Buy the OnePlus Nord 2 5G if you value speed, responsiveness, and rapid charging, making it ideal for gamers, power users, and those who frequently capture photos and videos.

Frequently Asked Questions

❓ Does the Dimensity 1200 in the OnePlus Nord 2 5G get noticeably warmer during extended gaming sessions?
The Dimensity 1200 is a powerful chip, and some heat generation is expected during prolonged gaming. However, OnePlus typically implements effective thermal management solutions, and reviews suggest the Nord 2 5G handles heat reasonably well, avoiding significant throttling. The 6nm process node also contributes to improved thermal efficiency compared to older 7nm chips.
❓ How much faster is the 65W charging on the OnePlus Nord 2 5G compared to the 33W charging on the vivo V21 in real-world use?
The difference is substantial. The Nord 2 5G can fully charge from 0-100% in approximately 30 minutes, while the V21 only reaches 63% in the same timeframe. This means you can add a significant amount of battery life to the Nord 2 5G in a very short period, making it ideal for users who need a quick top-up before heading out.
❓ Is the difference in battery endurance (123h vs 102h) between the vivo V21 and OnePlus Nord 2 5G significant for everyday use?
While the V21 has a higher endurance rating, the difference of 21 hours is unlikely to be dramatically noticeable for most users. The Nord 2 5G’s faster charging largely mitigates this difference, allowing you to quickly replenish the battery when needed. Usage patterns (screen-on time, app usage) will have a far greater impact on real-world battery life.