Vivo V21 vs Oppo K15

340 USD

340 USD

Available

Available

Vivo Mobiles

Oppo Mobiles

Vivo V21

Oppo K15

2021, June 01

2026, July 18

GSM/HSDPA/LTE

GSM / HSPA / LTE / 5G

GSM 850 / 900 / 1800 / 1900 – SIM 1& SIM 2

GSM 850 / 900 / 1800 / 1900

HSDPA 850 / 900 / 2100

HSDPA 800 / 850 / 900 / 2100

LTE band 1(2100), 3(1800), 5(850), 8(900), 38(2600), 39(1900), 40(2300), 41(2500)

1, 3, 5, 8, 19, 28, 34, 38, 39, 40, 41, 42, 43, 48

HSPA 42.2/5.76 Mbps, LTE-A

HSPA, LTE, 5G

1, 3, 5, 8, 28, 34, 38, 39, 40, 41, 48, 77, 78 SA/NSA

159.68×73.90×7.29mm*（Dusk Blue） 7.29mm Ultra Slim AG Design

176g

Front/back glass (Gorilla Glass 5), plastic frame

IP68/IP69 dust tight and water resistant (high pressure water jets; immersible up to 1.5m for 30 min) RGB LED lights (on the back)

Dual SIM (Nano-SIM, dual stand-by)

Nano-SIM + Nano-SIM

Dusk Blue, Sunset Dazzle, Arctic White

Gray, Silver

AMOLED, HDR10, 430 nits (typ), Capacitive multi-touch

AMOLED, 1B colors, 120Hz

6.44 inches, 100.1 cm2 (~83.5% screen-to-body ratio), Measured diagonally, the screen size 6.44 inch in the full rectangle. Actual display area is slightly smaller.

6.59 inches, 105.6 cm2 (~88.9% screen-to-body ratio)

1080 x 2400 pixels, 20:9 ratio (~409 ppi density)

1256 x 2760 pixels (~460 ppi density)

Android 11, Funtouch 11.1

Android 16, ColorOS 16

MediaTek MT6853 Dimensity 800U 5G (7 nm)

Mediatek Dimensity 7360 Super (4 nm)

Octa-core (2x2.4 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55)

Octa-core (4x2.5 GHz Cortex-A78 & 4x2.0 GHz Cortex-A55)

Mali-G57 MC3

Mali-G615 MC2

8GB

12GB

128GB/256GB

256GB

No

64 MP, f/1.8, 26mm (wide), 1/1.72", 0.8µm, PDAF, OIS

50 MP, f/1.8, (wide), PDAF, OIS

8 MP, f/2.2, 120˚, 16mm (ultrawide), 1/4.0", 1.12µm

50 MP, f/2.2, (ultrawide)

2 MP, f/2.4, (macro)

OIS, 4K Video, Eye Autofocus, Night, Ultra-Wide Night, Ultra Stable Video, Art Portrait Video, Super Macro, Bokeh Portrait, Multi-Style Portrait

Color spectrum sensor, LED flash, panorama

4K@30fps (no OIS), 1080p@30/60fps

4K@30/60fps, 1080p@30/60/120/240fps, gyro-EIS

44 MP, f/2.0, (wide), AF, OIS

50 MP, (wide)

IS, Autofocus, Night, AI Night Portrait, Eye Autofocus, 4K Video, Ultra Stable Video, Light Filters, Kid Face Beauty, Beauty Mark Retention, Head Slimming, Double Exposure, Video Face Beauty, Dual-View Video

Panorama

4K@30fps (no OIS), 1080p@30fps

Yes

Li-Po 4000 mAh, non-removable

Si/C Li-Ion 8000 mAh

Fast charging 33W, 63% in 30 min

80W wired, 44W/80W UFCS, 55W PPS, 13.5W PD Reverse wired Bypass charging

Fingerprint (under display, optical), accelerometer, gyro, proximity, compass

Fingerprint (under display, optical), accelerometer, gyro, proximity, compass

Yes

Yes, with stereo speakers

Yes

Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot

Wi-Fi 802.11 a/b/g/n/ac/6, dual-band

5.1, A2DP, LE

5.4, A2DP, LE, aptX HD, LHDC 5

Yes, with A-GPS, GLONASS, GALILEO, BDS

GPS (L1+L5), BDS (B1I+B1c+B2a), GALILEO (E1+E5a+E5b), QZSS (L1+L5), NavIC (L5), GLONASS

No

Yes

No

USB Type-C 2.0, USB On-The-Go

USB Type-C 2.0, OTG