Product
Vivo X21 UD
Vivo X21 UD
₹56,038
OnePlus 13T
OnePlus 13T
₹41,097
Battery
Charging 18W wired 80W wired, 33W PPS, 18W PD, 18W QC5W reverse wired
Type Li-Ion 3200 mAh, non-removable Si/C Li-Ion 6260 mAh
Body
Build Glass front (Gorilla Glass 3), aluminum back, aluminum frame Glass front, aluminum alloy frame
Dimensions 154.5 x 74.8 x 7.4 mm (6.08 x 2.94 x 0.29 in) 150.8 x 71.7 x 8.2 mm (5.94 x 2.82 x 0.32 in)
SIM Nano-SIM + Nano-SIM Nano-SIM + Nano-SIM + eSIM (max 2 at a time)Nano-SIM + Nano-SIM
Weight 156.2 g (5.50 oz) 185 g (6.53 oz)
  - IP65 dust tight and water resistant (low pressure water jets)
Comms
Bluetooth 5.0, A2DP, LE 5.4, A2DP, LE, aptX HD, LHDC 5
Infrared port - Yes
NFC No Yes
Positioning GPS, GLONASS GPS (L1+L5), BDS (B1I+B1c+B2a), GALILEO (E1+E5a), QZSS (L1+L5), GLONASS
Radio FM radio No
USB microUSB 2.0, OTG USB Type-C 2.0, OTG
WLAN Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct Wi-Fi 802.11 a/b/g/n/ac/6/7, dual or tri-band, Wi-Fi Direct
Display
Protection Corning Gorilla Glass 3 Crystal Shield Glass
Resolution 1080 x 2280 pixels, 19:9 ratio (~402 ppi density) 1216 x 2640 pixels, 19.5:9 ratio (~460 ppi density)
Size 6.28 inches, 98.4 cm2 (~85.2% screen-to-body ratio) 6.32 inches, 97.9 cm2 (~90.6% screen-to-body ratio)
Type Super AMOLED LTPO AMOLED, 1B colors, 120Hz, 2160Hz PWM, Dolby Vision, HDR10+, HDR Vivid, 1600 nits (HBM)
Features
Sensors Fingerprint (under display, optical), accelerometer, proximity, compass Fingerprint (under display, optical), accelerometer, gyro, proximity, compass
  - Circle to Search
Launch
Announced 2018, March. Released 2018, March 2025, April 24
Status Discontinued Available. Released 2025, April 30
Main Camera
Dual 12 MP, f/1.8, 1/2.55", 1.4µm, dual pixel PDAF 5 MP, f/2.4, (depth) 50 MP, f/1.8, 24mm (wide), 1/1.56", 1.0µm, multi-directional PDAF, OIS50 MP, f/2.0, (telephoto), 1/2.76", 0.64µm, 2x optical zoom, PDAF
Features LED flash, HDR, panorama Color spectrum sensor, LED flash, HDR, panorama
Video 1080p@30fps 4K@30/60fps, 1080p@30/60/240fps, gyro-EIS, OIS, Dolby Vision HDR
Memory
Card slot microSDXC (uses shared SIM slot) No
Internal 128GB 6GB RAM 256GB 12GB RAM, 256GB 16GB RAM, 512GB 12GB RAM, 512GB 16GB RAM, 1TB 16GB RAM
  eMMC 5.1 UFS 4.0
Misc
Colors Black, Ruby Red Black, Gray, Pink
Models X21UD A PKX110
Network
2G bands GSM 850 / 900 / 1800 / 1900 GSM 850 / 900 / 1800 / 1900
3G bands HSDPA 850 / 900 / 1900 / 2100 HSDPA 850 / 900 / 1900 / 2100
4G bands 1, 2, 3, 5, 8, 34, 38, 39, 40, 41 1, 3, 4, 5, 8, 18, 19, 26, 28, 34, 38, 39, 40, 41, 42, 48, 66
5G bands - 1, 3, 5, 8, 26, 28, 38, 40, 41, 48, 66, 77, 78, 80, 81, 83, 84, 89 SA/NSA/Sub6
Speed HSPA 42.2/5.76 Mbps, LTE (2CA) Cat6 300/50 Mbps HSPA, LTE (CA), 5G
Technology GSM / CDMA / HSPA / LTE GSM / HSPA / LTE / 5G
  CDMA 800 & TD-SCDMA -
Platform
Chipset Qualcomm SDM660 Snapdragon 660 (14 nm) Qualcomm SM8750-AB Snapdragon 8 Elite (3 nm)
CPU Octa-core (4x2.2 GHz Kryo 260 Gold & 4x1.8 GHz Kryo 260 Silver) Octa-core (2x4.32 GHz Oryon V2 Phoenix L + 6x3.53 GHz Oryon V2 Phoenix M)
GPU Adreno 512 Adreno 830
OS Android 8.1 (Oreo), Funtouch 4 Android 15, OxygenOS 15 (International), ColorOS 15 (China)
Selfie camera
Features - HDR, panorama
Single 12 MP, f/2.0, (wide), 1/2.8", 1.28µm 16 MP, f/2.4, 24mm (wide)
Video 1080p@30fps 1080p@30fps
Sound
3.5mm jack Yes No
Loudspeaker Yes Yes, with stereo speakers
  32-bit/192kHz Hi-Res audio -
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