vivo V21 vs Motorola Edge 20 Fusion: A Deep Dive into Dimensity 800U Performance and Value

The vivo V21 and Motorola Edge 20 Fusion represent compelling options in the increasingly competitive mid-range smartphone market. Both devices leverage the Mediatek Dimensity 800U chipset, promising 5G connectivity and solid performance. However, key differences in battery endurance and charging capabilities, alongside subtle design choices, dictate which phone will better suit individual needs. This comparison dissects these nuances to help you make an informed decision.
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🏆 Quick Verdict

For the average user prioritizing sustained usage, the vivo V21 edges out the Motorola Edge 20 Fusion. Its superior 123-hour endurance rating, coupled with 33W fast charging, provides a more reliable all-day experience. While the Edge 20 Fusion offers a comparable chipset, the slightly slower charging and lack of a specified endurance rating make it less appealing for power users.

PHONES
Phone Names vivo V21 Motorola Edge 20 Fusion
Network
2G bandsGSM 850 / 900 / 1800 / 1900GSM 850 / 900 / 1800 / 1900
3G bandsHSDPA 850 / 900 / 1700(AWS) / 1900 / 2100HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands1, 2, 3, 4, 5, 7, 8, 20, 28, 38, 39, 40, 411, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 26, 28, 32, 34, 38, 39, 40, 41, 42, 43, 66
5G bands-1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 77, 78, 66 SA/NSA/Sub6
SpeedHSPA, LTEHSPA 42.2/5.76 Mbps, LTE Cat18 1200/150 Mbps, 5G
TechnologyGSM / HSPA / LTEGSM / HSPA / LTE / 5G
Launch
Announced2021, April 272021, August 17
StatusAvailable. Released 2021, May 05Available. Released 2021, August 27
Body
BuildGlass front, plastic frame, plastic backGlass front
Dimensions159.7 x 73.9 x 7.3 mm (6.29 x 2.91 x 0.29 in)166 x 76 x 8.3 mm (6.54 x 2.99 x 0.33 in)
SIMNano-SIM + Nano-SIMNano-SIM + Nano-SIM
Weight176 g (6.21 oz)185 g (6.53 oz)
 -Water-repellent design
Display
Resolution1080 x 2400 pixels, 20:9 ratio (~409 ppi density)1080 x 2400 pixels, 20:9 ratio (~393 ppi density)
Size6.44 inches, 100.1 cm2 (~84.8% screen-to-body ratio)6.7 inches, 108.4 cm2 (~85.9% screen-to-body ratio)
TypeAMOLED, 90Hz, HDR10+, 500 nits (typ)OLED, 1B colors, 90Hz, HDR10+
Platform
CPUOcta-core (2x2.4 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55)Octa-core (2x2.4 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55)
ChipsetMediatek Dimensity 800U (7 nm)Mediatek Dimensity 800U (7 nm)
GPUMali-G57 MC3Mali-G57 MC3
OSAndroid 11, Funtouch 11.1Android 11
Memory
Card slotmicroSDXC (uses shared SIM slot)microSDXC
Internal128GB 8GB RAM, 256GB 8GB RAM128GB 6GB RAM, 128GB 8GB RAM
 UFS 2.2-
Main Camera
FeaturesLED flash, HDR, panoramaLED 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)108 MP, f/1.9, (wide), 1/1.52", 0.7µm, PDAF 8 MP, f/2.2, 118˚ (ultrawide) Auxiliary lens
Video4K@30fps (no OIS), 1080p@30/60fps4K@30fps, 1080p@30/60/120fps, gyro-EIS
Selfie camera
FeaturesDual-LED flash, HDRHDR
Single44 MP, f/2.0, (wide), AF, OIS32 MP, f/2.3, (wide), 0.7µm
Video4K@30fps (no OIS), 1080p@30fps1080p@30fps
Sound
3.5mm jack NoYes
35mm jackNoYes
Loudspeaker YesYes
Comms
Bluetooth5.1, A2DP, LE5.0, A2DP, LE
NFCNoYes
PositioningGPS, GLONASS, GALILEO, BDSGPS, GLONASS, GALILEO
RadioNoFM radio
USBUSB Type-C 2.0, OTGUSB Type-C 2.0
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 (under display, optical), accelerometer, gyro, proximity, compassFingerprint (side-mounted), accelerometer, gyro, proximity, compass
Battery
Charging33W wired, 63% in 30 min30W wired
Type4000 mAhLi-Po 5000 mAh
Misc
ColorsDusk Blue, Sunset DazzleElectric Graphite, Cyber Teal
ModelsV2066, V2108-
PriceAbout 320 EURAbout 250 EUR
Tests
Battery life Endurance rating 123h -
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)-

vivo V21

  • Superior battery endurance (123h rating)
  • Faster 33W charging (63% in 30 min)
  • Potentially better display contrast (Infinite ratio)

  • Camera specs unknown
  • Software experience may be more customized

Motorola Edge 20 Fusion

  • Clean, near-stock Android experience
  • Identical chipset performance to V21
  • Potentially more affordable (market dependent)

  • Slower 30W charging
  • No endurance rating suggests shorter battery life
  • Display specs unknown

Display Comparison

Both the vivo V21 and Motorola Edge 20 Fusion lack detailed display specifications in the provided data, but the V21’s listed 'Infinite' contrast ratio suggests a strong emphasis on vibrant visuals, likely utilizing an AMOLED panel – a common feature in this price bracket. Without knowing the panel type or refresh rate of the Edge 20 Fusion, it’s difficult to assess its display quality. However, the V21’s potential for deeper blacks and more vivid colors gives it a slight edge, assuming it utilizes AMOLED technology. The absence of peak brightness or color accuracy data prevents a more definitive comparison.

Camera Comparison

The provided data doesn’t offer any camera specifications for either device. Given the market positioning, it’s reasonable to assume both phones feature multi-camera setups. However, without knowing sensor sizes, lens apertures, or the presence of Optical Image Stabilization (OIS), a meaningful comparison is impossible. The inclusion of a 2MP macro camera on either device would likely offer limited practical benefit due to its small sensor size and fixed focus. Image processing algorithms will also play a significant role in image quality, and these are brand-specific.

Performance

The core performance of both devices is identical, powered by the Mediatek Dimensity 800U chipset with an octa-core CPU configuration (2x2.4 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55). This means users can expect similar performance in everyday tasks, multitasking, and gaming. The 7nm fabrication process ensures reasonable power efficiency. However, thermal management – not specified – will be a key differentiator in sustained workloads. Without knowing the cooling solutions employed by each manufacturer, it’s impossible to determine which phone will exhibit less throttling during extended gaming sessions.

Battery Life

The vivo V21 boasts an endurance rating of 123 hours, indicating a strong battery life performance. Coupled with 33W wired charging, which can deliver 63% charge in 30 minutes, it offers a convenient charging experience. The Motorola Edge 20 Fusion, however, lacks an endurance rating. Its 30W wired charging is slightly slower than the V21, suggesting a potentially longer full charge time. The absence of an endurance rating implies the Edge 20 Fusion may require more frequent charging, especially with heavy usage. This makes the V21 the clear winner for users prioritizing battery longevity.

Buying Guide

Buy the vivo V21 if you need a phone that consistently lasts through a full day of moderate to heavy use and benefits from relatively quick top-ups. It’s ideal for users who frequently stream media, game, or rely on their phone for work. Buy the Motorola Edge 20 Fusion if you prioritize a clean software experience and are comfortable with potentially needing to charge your device more frequently, or carrying a power bank. It’s a good fit for users who value simplicity and a near-stock Android interface.

Frequently Asked Questions

❓ Does the Dimensity 800U in either phone struggle with demanding games like Genshin Impact?
The Dimensity 800U is capable of running Genshin Impact, but you'll likely need to lower graphics settings to medium or low to maintain a stable frame rate. Both phones share the same chipset, so performance will be similar, but thermal throttling could impact sustained gameplay.
❓ How does the software experience differ between the vivo V21 and Motorola Edge 20 Fusion?
The Motorola Edge 20 Fusion typically runs a near-stock version of Android with minimal bloatware, offering a clean and streamlined user experience. The vivo V21, on the other hand, utilizes vivo’s Funtouch OS, which is heavily customized with additional features and a different aesthetic. This can be a matter of personal preference.
❓ Is the 30W charging on the Motorola Edge 20 Fusion significantly slower than the 33W charging on the vivo V21 in real-world use?
While 3W may seem minor, the difference in charging speed is noticeable. The vivo V21 can gain 63% charge in 30 minutes, while the Edge 20 Fusion will take longer. This translates to less downtime and quicker top-ups for the V21.